31271513

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 40943616

約数和(自身を除く): 9672103

約数列:

[1, 7, 13, 23, 67, 91, 161, 223, 299, 469, 871, 1541, 1561, 2093, 2899, 5129, 6097, 10787, 14941, 20033, 20293, 35903, 66677, 104587, 140231, 194233, 343643, 466739, 1359631, 2405501, 4467359, 31271513]

約数ペア:

[(1, 31271513), (7, 4467359), (13, 2405501), (23, 1359631), (67, 466739), (91, 343643), (161, 194233), (223, 140231), (299, 104587), (469, 66677), (871, 35903), (1541, 20293), (1561, 20033), (2093, 14941), (2899, 10787), (5129, 6097)]