81820459

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{2153}}^1$

素因数の和:2310

約数の個数: 16

約数和(自身を含む): 96154560

約数和(自身を除く): 14334101

約数列:

[1, 7, 61, 89, 427, 623, 2153, 5429, 15071, 38003, 131333, 191617, 919331, 1341319, 11688637, 81820459]

約数ペア:

[(1, 81820459), (7, 11688637), (61, 1341319), (89, 919331), (427, 191617), (623, 131333), (2153, 38003), (5429, 15071)]