18939782

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{1213}}^1$

素因数の和:1463

約数の個数: 16

約数和(自身を含む): 29339952

約数和(自身を除く): 10400170

約数列:

[1, 2, 37, 74, 211, 422, 1213, 2426, 7807, 15614, 44881, 89762, 255943, 511886, 9469891, 18939782]

約数ペア:

[(1, 18939782), (2, 9469891), (37, 511886), (74, 255943), (211, 89762), (422, 44881), (1213, 15614), (2426, 7807)]