211237089

素因数分解:

$3^1\times 7^2\times {\mathrm{647}}^1\times {\mathrm{2221}}^1$

素因数の和:2885

約数の個数: 24

約数和(自身を含む): 328287168

約数和(自身を除く): 117050079

約数列:

[1, 3, 7, 21, 49, 147, 647, 1941, 2221, 4529, 6663, 13587, 15547, 31703, 46641, 95109, 108829, 326487, 1436987, 4310961, 10058909, 30176727, 70412363, 211237089]

約数ペア:

[(1, 211237089), (3, 70412363), (7, 30176727), (21, 10058909), (49, 4310961), (147, 1436987), (647, 326487), (1941, 108829), (2221, 95109), (4529, 46641), (6663, 31703), (13587, 15547)]