21857232

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:476

約数の個数: 80

約数和(自身を含む): 60012032

約数和(自身を除く): 38154800

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 37, 48, 62, 74, 93, 111, 124, 148, 186, 222, 248, 296, 372, 397, 444, 496, 592, 744, 794, 888, 1147, 1191, 1488, 1588, 1776, 2294, 2382, 3176, 3441, 4588, 4764, 6352, 6882, 9176, 9528, 12307, 13764, 14689, 18352, 19056, 24614, 27528, 29378, 36921, 44067, 49228, 55056, 58756, 73842, 88134, 98456, 117512, 147684, 176268, 196912, 235024, 295368, 352536, 455359, 590736, 705072, 910718, 1366077, 1821436, 2732154, 3642872, 5464308, 7285744, 10928616, 21857232]

約数ペア:

[(1, 21857232), (2, 10928616), (3, 7285744), (4, 5464308), (6, 3642872), (8, 2732154), (12, 1821436), (16, 1366077), (24, 910718), (31, 705072), (37, 590736), (48, 455359), (62, 352536), (74, 295368), (93, 235024), (111, 196912), (124, 176268), (148, 147684), (186, 117512), (222, 98456), (248, 88134), (296, 73842), (372, 58756), (397, 55056), (444, 49228), (496, 44067), (592, 36921), (744, 29378), (794, 27528), (888, 24614), (1147, 19056), (1191, 18352), (1488, 14689), (1588, 13764), (1776, 12307), (2294, 9528), (2382, 9176), (3176, 6882), (3441, 6352), (4588, 4764)]