217208890

素因数分解:

$2^1\times 5^1\times {\mathrm{2351}}^1\times {\mathrm{9239}}^1$

素因数の和:11597

約数の個数: 16

約数和(自身を含む): 391184640

約数和(自身を除く): 173975750

約数列:

[1, 2, 5, 10, 2351, 4702, 9239, 11755, 18478, 23510, 46195, 92390, 21720889, 43441778, 108604445, 217208890]

約数ペア:

[(1, 217208890), (2, 108604445), (5, 43441778), (10, 21720889), (2351, 92390), (4702, 46195), (9239, 23510), (11755, 18478)]