644031986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{195043}}^1$

素因数の和:195185

約数の個数: 16

約数和(自身を含む): 1048556544

約数和(自身を除く): 404524558

約数列:

[1, 2, 13, 26, 127, 254, 1651, 3302, 195043, 390086, 2535559, 5071118, 24770461, 49540922, 322015993, 644031986]

約数ペア:

[(1, 644031986), (2, 322015993), (13, 49540922), (26, 24770461), (127, 5071118), (254, 2535559), (1651, 390086), (3302, 195043)]