17979226

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:717

約数の個数: 16

約数和(自身を含む): 27406368

約数和(自身を除く): 9427142

約数列:

[1, 2, 131, 163, 262, 326, 421, 842, 21353, 42706, 55151, 68623, 110302, 137246, 8989613, 17979226]

約数ペア:

[(1, 17979226), (2, 8989613), (131, 137246), (163, 110302), (262, 68623), (326, 55151), (421, 42706), (842, 21353)]