21801056

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1559}}^1$

素因数の和:1611

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 25373344

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 76, 92, 152, 184, 304, 368, 437, 608, 736, 874, 1559, 1748, 3118, 3496, 6236, 6992, 12472, 13984, 24944, 29621, 35857, 49888, 59242, 71714, 118484, 143428, 236968, 286856, 473936, 573712, 681283, 947872, 1147424, 1362566, 2725132, 5450264, 10900528, 21801056]

約数ペア:

[(1, 21801056), (2, 10900528), (4, 5450264), (8, 2725132), (16, 1362566), (19, 1147424), (23, 947872), (32, 681283), (38, 573712), (46, 473936), (76, 286856), (92, 236968), (152, 143428), (184, 118484), (304, 71714), (368, 59242), (437, 49888), (608, 35857), (736, 29621), (874, 24944), (1559, 13984), (1748, 12472), (3118, 6992), (3496, 6236)]