20515418

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19031}}^1$

素因数の和:19058

約数の個数: 24

約数和(自身を含む): 39053664

約数和(自身を除く): 18538246

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19031, 38062, 133217, 209341, 266434, 418682, 932519, 1465387, 1865038, 2930774, 10257709, 20515418]

約数ペア:

[(1, 20515418), (2, 10257709), (7, 2930774), (11, 1865038), (14, 1465387), (22, 932519), (49, 418682), (77, 266434), (98, 209341), (154, 133217), (539, 38062), (1078, 19031)]