165918879

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{18947}}^1$

素因数の和:19099

約数の個数: 24

約数和(自身を含む): 275882880

約数和(自身を除く): 109964001

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 8757, 18947, 56841, 132629, 170523, 397887, 1193661, 2633633, 7900899, 18435431, 23702697, 55306293, 165918879]

約数ペア:

[(1, 165918879), (3, 55306293), (7, 23702697), (9, 18435431), (21, 7900899), (63, 2633633), (139, 1193661), (417, 397887), (973, 170523), (1251, 132629), (2919, 56841), (8757, 18947)]