1991232061

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{135911}}^1$

素因数の和:135961

約数の個数: 24

約数和(自身を含む): 2602986624

約数和(自身を除く): 611754563

約数列:

[1, 7, 13, 23, 49, 91, 161, 299, 637, 1127, 2093, 14651, 135911, 951377, 1766843, 3125953, 6659639, 12367901, 21881671, 40637389, 86575307, 153171697, 284461723, 1991232061]

約数ペア:

[(1, 1991232061), (7, 284461723), (13, 153171697), (23, 86575307), (49, 40637389), (91, 21881671), (161, 12367901), (299, 6659639), (637, 3125953), (1127, 1766843), (2093, 951377), (14651, 135911)]