31997788991

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2233079}}^1$

素因数の和:2233198

約数の個数: 16

約数和(自身を含む): 38587622400

約数和(自身を除く): 6589833409

約数列:

[1, 7, 23, 89, 161, 623, 2047, 14329, 2233079, 15631553, 51360817, 198744031, 359525719, 1391208217, 4571112713, 31997788991]

約数ペア:

[(1, 31997788991), (7, 4571112713), (23, 1391208217), (89, 359525719), (161, 198744031), (623, 51360817), (2047, 15631553), (14329, 2233079)]