21120528

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:233

約数の個数: 160

約数和(自身を含む): 68245632

約数和(自身を除く): 47125104

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 17, 22, 24, 26, 33, 34, 39, 44, 48, 51, 52, 66, 68, 78, 88, 102, 104, 132, 136, 143, 156, 176, 181, 187, 204, 208, 221, 264, 272, 286, 312, 362, 374, 408, 429, 442, 528, 543, 561, 572, 624, 663, 724, 748, 816, 858, 884, 1086, 1122, 1144, 1326, 1448, 1496, 1716, 1768, 1991, 2172, 2244, 2288, 2353, 2431, 2652, 2896, 2992, 3077, 3432, 3536, 3982, 4344, 4488, 4706, 4862, 5304, 5973, 6154, 6864, 7059, 7293, 7964, 8688, 8976, 9231, 9412, 9724, 10608, 11946, 12308, 14118, 14586, 15928, 18462, 18824, 19448, 23892, 24616, 25883, 28236, 29172, 31856, 33847, 36924, 37648, 38896, 40001, 47784, 49232, 51766, 56472, 58344, 67694, 73848, 77649, 80002, 95568, 101541, 103532, 112944, 116688, 120003, 135388, 147696, 155298, 160004, 203082, 207064, 240006, 270776, 310596, 320008, 406164, 414128, 440011, 480012, 541552, 621192, 640016, 812328, 880022, 960024, 1242384, 1320033, 1624656, 1760044, 1920048, 2640066, 3520088, 5280132, 7040176, 10560264, 21120528]

約数ペア:

[(1, 21120528), (2, 10560264), (3, 7040176), (4, 5280132), (6, 3520088), (8, 2640066), (11, 1920048), (12, 1760044), (13, 1624656), (16, 1320033), (17, 1242384), (22, 960024), (24, 880022), (26, 812328), (33, 640016), (34, 621192), (39, 541552), (44, 480012), (48, 440011), (51, 414128), (52, 406164), (66, 320008), (68, 310596), (78, 270776), (88, 240006), (102, 207064), (104, 203082), (132, 160004), (136, 155298), (143, 147696), (156, 135388), (176, 120003), (181, 116688), (187, 112944), (204, 103532), (208, 101541), (221, 95568), (264, 80002), (272, 77649), (286, 73848), (312, 67694), (362, 58344), (374, 56472), (408, 51766), (429, 49232), (442, 47784), (528, 40001), (543, 38896), (561, 37648), (572, 36924), (624, 33847), (663, 31856), (724, 29172), (748, 28236), (816, 25883), (858, 24616), (884, 23892), (1086, 19448), (1122, 18824), (1144, 18462), (1326, 15928), (1448, 14586), (1496, 14118), (1716, 12308), (1768, 11946), (1991, 10608), (2172, 9724), (2244, 9412), (2288, 9231), (2353, 8976), (2431, 8688), (2652, 7964), (2896, 7293), (2992, 7059), (3077, 6864), (3432, 6154), (3536, 5973), (3982, 5304), (4344, 4862), (4488, 4706)]