21490897941

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{1697}}^1\times {\mathrm{20393}}^1$

素因数の和:22122

約数の個数: 32

約数和(自身を含む): 33243851520

約数和(自身を除く): 11752953579

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 1697, 5091, 15273, 20393, 39031, 45819, 61179, 117093, 183537, 351279, 469039, 550611, 1053837, 1407117, 4221351, 12664053, 34606921, 103820763, 311462289, 795959183, 934386867, 2387877549, 7163632647, 21490897941]

約数ペア:

[(1, 21490897941), (3, 7163632647), (9, 2387877549), (23, 934386867), (27, 795959183), (69, 311462289), (207, 103820763), (621, 34606921), (1697, 12664053), (5091, 4221351), (15273, 1407117), (20393, 1053837), (39031, 550611), (45819, 469039), (61179, 351279), (117093, 183537)]