18831337

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 23392800

約数和(自身を除く): 4561463

約数列:

[1, 7, 19, 49, 113, 133, 179, 791, 931, 1253, 2147, 3401, 5537, 8771, 15029, 20227, 23807, 105203, 141589, 166649, 384313, 991123, 2690191, 18831337]

約数ペア:

[(1, 18831337), (7, 2690191), (19, 991123), (49, 384313), (113, 166649), (133, 141589), (179, 105203), (791, 23807), (931, 20227), (1253, 15029), (2147, 8771), (3401, 5537)]