18389878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 12454922

約数列:

[1, 2, 13, 26, 47, 94, 101, 149, 202, 298, 611, 1222, 1313, 1937, 2626, 3874, 4747, 7003, 9494, 14006, 15049, 30098, 61711, 91039, 123422, 182078, 195637, 391274, 707303, 1414606, 9194939, 18389878]

約数ペア:

[(1, 18389878), (2, 9194939), (13, 1414606), (26, 707303), (47, 391274), (94, 195637), (101, 182078), (149, 123422), (202, 91039), (298, 61711), (611, 30098), (1222, 15049), (1313, 14006), (1937, 9494), (2626, 7003), (3874, 4747)]