21870237

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{811}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 29816640

約数和(自身を除く): 7946403

約数列:

[1, 3, 89, 101, 267, 303, 811, 2433, 8989, 26967, 72179, 81911, 216537, 245733, 7290079, 21870237]

約数ペア:

[(1, 21870237), (3, 7290079), (89, 245733), (101, 216537), (267, 81911), (303, 72179), (811, 26967), (2433, 8989)]