18850741

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 23930424

約数和(自身を除く): 5079683

約数列:

[1, 7, 13, 49, 91, 101, 293, 637, 707, 1313, 2051, 3809, 4949, 9191, 14357, 26663, 29593, 64337, 186641, 207151, 384709, 1450057, 2692963, 18850741]

約数ペア:

[(1, 18850741), (7, 2692963), (13, 1450057), (49, 384709), (91, 207151), (101, 186641), (293, 64337), (637, 29593), (707, 26663), (1313, 14357), (2051, 9191), (3809, 4949)]