18971251

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{947}}^1$

素因数の和:1050

約数の個数: 16

約数和(自身を含む): 21659904

約数和(自身を除く): 2688653

約数列:

[1, 13, 23, 67, 299, 871, 947, 1541, 12311, 20033, 21781, 63449, 283153, 824837, 1459327, 18971251]

約数ペア:

[(1, 18971251), (13, 1459327), (23, 824837), (67, 283153), (299, 63449), (871, 21781), (947, 20033), (1541, 12311)]