19784292

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2111}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 51093504

約数和(自身を除く): 31309212

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 71, 132, 142, 213, 284, 426, 781, 852, 1562, 2111, 2343, 3124, 4222, 4686, 6333, 8444, 9372, 12666, 23221, 25332, 46442, 69663, 92884, 139326, 149881, 278652, 299762, 449643, 599524, 899286, 1648691, 1798572, 3297382, 4946073, 6594764, 9892146, 19784292]

約数ペア:

[(1, 19784292), (2, 9892146), (3, 6594764), (4, 4946073), (6, 3297382), (11, 1798572), (12, 1648691), (22, 899286), (33, 599524), (44, 449643), (66, 299762), (71, 278652), (132, 149881), (142, 139326), (213, 92884), (284, 69663), (426, 46442), (781, 25332), (852, 23221), (1562, 12666), (2111, 9372), (2343, 8444), (3124, 6333), (4222, 4686)]