391521519

素因数分解:

$3^4\times {\mathrm{1847}}^1\times {\mathrm{2617}}^1$

素因数の和:4476

約数の個数: 20

約数和(自身を含む): 585405744

約数和(自身を除く): 193884225

約数列:

[1, 3, 9, 27, 81, 1847, 2617, 5541, 7851, 16623, 23553, 49869, 70659, 149607, 211977, 4833599, 14500797, 43502391, 130507173, 391521519]

約数ペア:

[(1, 391521519), (3, 130507173), (9, 43502391), (27, 14500797), (81, 4833599), (1847, 211977), (2617, 149607), (5541, 70659), (7851, 49869), (16623, 23553)]