21275738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{349}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 37195200

約数和(自身を除く): 15919462

約数列:

[1, 2, 11, 17, 22, 34, 163, 187, 326, 349, 374, 698, 1793, 2771, 3586, 3839, 5542, 5933, 7678, 11866, 30481, 56887, 60962, 65263, 113774, 130526, 625757, 967079, 1251514, 1934158, 10637869, 21275738]

約数ペア:

[(1, 21275738), (2, 10637869), (11, 1934158), (17, 1251514), (22, 967079), (34, 625757), (163, 130526), (187, 113774), (326, 65263), (349, 60962), (374, 56887), (698, 30481), (1793, 11866), (2771, 7678), (3586, 5933), (3839, 5542)]