21393404

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1831}}^1$

素因数の和:1985

約数の個数: 24

約数和(自身を含む): 39395328

約数和(自身を除く): 18001924

約数列:

[1, 2, 4, 23, 46, 92, 127, 254, 508, 1831, 2921, 3662, 5842, 7324, 11684, 42113, 84226, 168452, 232537, 465074, 930148, 5348351, 10696702, 21393404]

約数ペア:

[(1, 21393404), (2, 10696702), (4, 5348351), (23, 930148), (46, 465074), (92, 232537), (127, 168452), (254, 84226), (508, 42113), (1831, 11684), (2921, 7324), (3662, 5842)]