21683880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 76377600

約数和(自身を除く): 54693720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 31, 36, 40, 45, 58, 60, 62, 67, 72, 87, 90, 93, 116, 120, 124, 134, 145, 155, 174, 180, 186, 201, 232, 248, 261, 268, 279, 290, 310, 335, 348, 360, 372, 402, 435, 465, 522, 536, 558, 580, 603, 620, 670, 696, 744, 804, 870, 899, 930, 1005, 1044, 1116, 1160, 1206, 1240, 1305, 1340, 1395, 1608, 1740, 1798, 1860, 1943, 2010, 2077, 2088, 2232, 2412, 2610, 2680, 2697, 2790, 3015, 3480, 3596, 3720, 3886, 4020, 4154, 4495, 4824, 5220, 5394, 5580, 5829, 6030, 6231, 7192, 7772, 8040, 8091, 8308, 8990, 9715, 10385, 10440, 10788, 11160, 11658, 12060, 12462, 13485, 15544, 16182, 16616, 17487, 17980, 18693, 19430, 20770, 21576, 23316, 24120, 24924, 26970, 29145, 31155, 32364, 34974, 35960, 37386, 38860, 40455, 41540, 46632, 49848, 53940, 58290, 60233, 62310, 64728, 69948, 74772, 77720, 80910, 83080, 87435, 93465, 107880, 116580, 120466, 124620, 139896, 149544, 161820, 174870, 180699, 186930, 233160, 240932, 249240, 301165, 323640, 349740, 361398, 373860, 481864, 542097, 602330, 699480, 722796, 747720, 903495, 1084194, 1204660, 1445592, 1806990, 2168388, 2409320, 2710485, 3613980, 4336776, 5420970, 7227960, 10841940, 21683880]

約数ペア:

[(1, 21683880), (2, 10841940), (3, 7227960), (4, 5420970), (5, 4336776), (6, 3613980), (8, 2710485), (9, 2409320), (10, 2168388), (12, 1806990), (15, 1445592), (18, 1204660), (20, 1084194), (24, 903495), (29, 747720), (30, 722796), (31, 699480), (36, 602330), (40, 542097), (45, 481864), (58, 373860), (60, 361398), (62, 349740), (67, 323640), (72, 301165), (87, 249240), (90, 240932), (93, 233160), (116, 186930), (120, 180699), (124, 174870), (134, 161820), (145, 149544), (155, 139896), (174, 124620), (180, 120466), (186, 116580), (201, 107880), (232, 93465), (248, 87435), (261, 83080), (268, 80910), (279, 77720), (290, 74772), (310, 69948), (335, 64728), (348, 62310), (360, 60233), (372, 58290), (402, 53940), (435, 49848), (465, 46632), (522, 41540), (536, 40455), (558, 38860), (580, 37386), (603, 35960), (620, 34974), (670, 32364), (696, 31155), (744, 29145), (804, 26970), (870, 24924), (899, 24120), (930, 23316), (1005, 21576), (1044, 20770), (1116, 19430), (1160, 18693), (1206, 17980), (1240, 17487), (1305, 16616), (1340, 16182), (1395, 15544), (1608, 13485), (1740, 12462), (1798, 12060), (1860, 11658), (1943, 11160), (2010, 10788), (2077, 10440), (2088, 10385), (2232, 9715), (2412, 8990), (2610, 8308), (2680, 8091), (2697, 8040), (2790, 7772), (3015, 7192), (3480, 6231), (3596, 6030), (3720, 5829), (3886, 5580), (4020, 5394), (4154, 5220), (4495, 4824)]