18128643

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{6547}}^1$

素因数の和:6634

約数の個数: 16

約数和(自身を含む): 26401536

約数和(自身を除く): 8272893

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 6547, 19641, 85111, 255333, 464837, 1394511, 6042881, 18128643]

約数ペア:

[(1, 18128643), (3, 6042881), (13, 1394511), (39, 464837), (71, 255333), (213, 85111), (923, 19641), (2769, 6547)]