18521923

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3967}}^1$

素因数の和:4026

約数の個数: 16

約数和(自身を含む): 22855680

約数和(自身を除く): 4333757

約数列:

[1, 7, 23, 29, 161, 203, 667, 3967, 4669, 27769, 91241, 115043, 638687, 805301, 2645989, 18521923]

約数ペア:

[(1, 18521923), (7, 2645989), (23, 805301), (29, 638687), (161, 115043), (203, 91241), (667, 27769), (3967, 4669)]