21971021280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{15511}}^1$

素因数の和:15769

約数の個数: 192

約数和(自身を含む): 74865627648

約数和(自身を除く): 52894606368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 227, 240, 260, 312, 390, 416, 454, 480, 520, 624, 681, 780, 908, 1040, 1135, 1248, 1362, 1560, 1816, 2080, 2270, 2724, 2951, 3120, 3405, 3632, 4540, 5448, 5902, 6240, 6810, 7264, 8853, 9080, 10896, 11804, 13620, 14755, 15511, 17706, 18160, 21792, 23608, 27240, 29510, 31022, 35412, 36320, 44265, 46533, 47216, 54480, 59020, 62044, 70824, 77555, 88530, 93066, 94432, 108960, 118040, 124088, 141648, 155110, 177060, 186132, 201643, 232665, 236080, 248176, 283296, 310220, 354120, 372264, 403286, 465330, 472160, 496352, 604929, 620440, 708240, 744528, 806572, 930660, 1008215, 1209858, 1240880, 1416480, 1489056, 1613144, 1861320, 2016430, 2419716, 2481760, 3024645, 3226288, 3520997, 3722640, 4032860, 4839432, 6049290, 6452576, 7041994, 7445280, 8065720, 9678864, 10562991, 12098580, 14083988, 16131440, 17604985, 19357728, 21125982, 24197160, 28167976, 32262880, 35209970, 42251964, 45772961, 48394320, 52814955, 56335952, 70419940, 84503928, 91545922, 96788640, 105629910, 112671904, 137318883, 140839880, 169007856, 183091844, 211259820, 228864805, 274637766, 281679760, 338015712, 366183688, 422519640, 457729610, 549275532, 563359520, 686594415, 732367376, 845039280, 915459220, 1098551064, 1373188830, 1464734752, 1690078560, 1830918440, 2197102128, 2746377660, 3661836880, 4394204256, 5492755320, 7323673760, 10985510640, 21971021280]

約数ペア:

[(1, 21971021280), (2, 10985510640), (3, 7323673760), (4, 5492755320), (5, 4394204256), (6, 3661836880), (8, 2746377660), (10, 2197102128), (12, 1830918440), (13, 1690078560), (15, 1464734752), (16, 1373188830), (20, 1098551064), (24, 915459220), (26, 845039280), (30, 732367376), (32, 686594415), (39, 563359520), (40, 549275532), (48, 457729610), (52, 422519640), (60, 366183688), (65, 338015712), (78, 281679760), (80, 274637766), (96, 228864805), (104, 211259820), (120, 183091844), (130, 169007856), (156, 140839880), (160, 137318883), (195, 112671904), (208, 105629910), (227, 96788640), (240, 91545922), (260, 84503928), (312, 70419940), (390, 56335952), (416, 52814955), (454, 48394320), (480, 45772961), (520, 42251964), (624, 35209970), (681, 32262880), (780, 28167976), (908, 24197160), (1040, 21125982), (1135, 19357728), (1248, 17604985), (1362, 16131440), (1560, 14083988), (1816, 12098580), (2080, 10562991), (2270, 9678864), (2724, 8065720), (2951, 7445280), (3120, 7041994), (3405, 6452576), (3632, 6049290), (4540, 4839432), (5448, 4032860), (5902, 3722640), (6240, 3520997), (6810, 3226288), (7264, 3024645), (8853, 2481760), (9080, 2419716), (10896, 2016430), (11804, 1861320), (13620, 1613144), (14755, 1489056), (15511, 1416480), (17706, 1240880), (18160, 1209858), (21792, 1008215), (23608, 930660), (27240, 806572), (29510, 744528), (31022, 708240), (35412, 620440), (36320, 604929), (44265, 496352), (46533, 472160), (47216, 465330), (54480, 403286), (59020, 372264), (62044, 354120), (70824, 310220), (77555, 283296), (88530, 248176), (93066, 236080), (94432, 232665), (108960, 201643), (118040, 186132), (124088, 177060), (141648, 155110)]