81405809

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 92954688

約数和(自身を除く): 11548879

約数列:

[1, 17, 23, 37, 289, 331, 391, 629, 851, 5627, 6647, 7613, 10693, 12247, 14467, 95659, 129421, 208199, 245939, 281681, 2200157, 3539383, 4788577, 81405809]

約数ペア:

[(1, 81405809), (17, 4788577), (23, 3539383), (37, 2200157), (289, 281681), (331, 245939), (391, 208199), (629, 129421), (851, 95659), (5627, 14467), (6647, 12247), (7613, 10693)]