129640638

素因数分解:

$2^1\times 3^1\times {\mathrm{991}}^1\times {\mathrm{21803}}^1$

素因数の和:22799

約数の個数: 16

約数和(自身を含む): 259554816

約数和(自身を除く): 129914178

約数列:

[1, 2, 3, 6, 991, 1982, 2973, 5946, 21803, 43606, 65409, 130818, 21606773, 43213546, 64820319, 129640638]

約数ペア:

[(1, 129640638), (2, 64820319), (3, 43213546), (6, 21606773), (991, 130818), (1982, 65409), (2973, 43606), (5946, 21803)]