20450818

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{1087}}^1$

素因数の和:1521

約数の個数: 16

約数和(自身を含む): 32117760

約数和(自身を除く): 11666942

約数列:

[1, 2, 23, 46, 409, 818, 1087, 2174, 9407, 18814, 25001, 50002, 444583, 889166, 10225409, 20450818]

約数ペア:

[(1, 20450818), (2, 10225409), (23, 889166), (46, 444583), (409, 50002), (818, 25001), (1087, 18814), (2174, 9407)]