21001898

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{2801}}^1$

素因数の和:2989

約数の個数: 16

約数和(自身を含む): 33086016

約数和(自身を除く): 12084118

約数列:

[1, 2, 23, 46, 163, 326, 2801, 3749, 5602, 7498, 64423, 128846, 456563, 913126, 10500949, 21001898]

約数ペア:

[(1, 21001898), (2, 10500949), (23, 913126), (46, 456563), (163, 128846), (326, 64423), (2801, 7498), (3749, 5602)]