21489275728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{13421}}^1$

素因数の和:13700

約数の個数: 80

約数和(自身を含む): 45935452800

約数和(自身を除く): 24446177072

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 229, 304, 368, 437, 458, 874, 916, 1748, 1832, 3496, 3664, 4351, 5267, 6992, 8702, 10534, 13421, 17404, 21068, 26842, 34808, 42136, 53684, 69616, 84272, 100073, 107368, 200146, 214736, 254999, 308683, 400292, 509998, 617366, 800584, 1019996, 1234732, 1601168, 2039992, 2469464, 3073409, 4079984, 4938928, 5864977, 6146818, 11729954, 12293636, 23459908, 24587272, 46919816, 49174544, 58394771, 70688407, 93839632, 116789542, 141376814, 233579084, 282753628, 467158168, 565507256, 934316336, 1131014512, 1343079733, 2686159466, 5372318932, 10744637864, 21489275728]

約数ペア:

[(1, 21489275728), (2, 10744637864), (4, 5372318932), (8, 2686159466), (16, 1343079733), (19, 1131014512), (23, 934316336), (38, 565507256), (46, 467158168), (76, 282753628), (92, 233579084), (152, 141376814), (184, 116789542), (229, 93839632), (304, 70688407), (368, 58394771), (437, 49174544), (458, 46919816), (874, 24587272), (916, 23459908), (1748, 12293636), (1832, 11729954), (3496, 6146818), (3664, 5864977), (4351, 4938928), (5267, 4079984), (6992, 3073409), (8702, 2469464), (10534, 2039992), (13421, 1601168), (17404, 1234732), (21068, 1019996), (26842, 800584), (34808, 617366), (42136, 509998), (53684, 400292), (69616, 308683), (84272, 254999), (100073, 214736), (107368, 200146)]