31222891

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2179}}^1$

素因数の和:2298

約数の個数: 16

約数和(自身を含む): 37670400

約数和(自身を除く): 6447509

約数列:

[1, 7, 23, 89, 161, 623, 2047, 2179, 14329, 15253, 50117, 193931, 350819, 1357517, 4460413, 31222891]

約数ペア:

[(1, 31222891), (7, 4460413), (23, 1357517), (89, 350819), (161, 193931), (623, 50117), (2047, 15253), (2179, 14329)]