21113421

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{937}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 34218240

約数和(自身を除く): 13104819

約数列:

[1, 3, 7, 21, 29, 37, 87, 111, 203, 259, 609, 777, 937, 1073, 2811, 3219, 6559, 7511, 19677, 22533, 27173, 34669, 81519, 104007, 190211, 242683, 570633, 728049, 1005401, 3016203, 7037807, 21113421]

約数ペア:

[(1, 21113421), (3, 7037807), (7, 3016203), (21, 1005401), (29, 728049), (37, 570633), (87, 242683), (111, 190211), (203, 104007), (259, 81519), (609, 34669), (777, 27173), (937, 22533), (1073, 19677), (2811, 7511), (3219, 6559)]