20657898

素因数分解:

$2^1\times 3^2\times {\mathrm{109}}^1\times {\mathrm{10529}}^1$

素因数の和:10646

約数の個数: 24

約数和(自身を含む): 45173700

約数和(自身を除く): 24515802

約数列:

[1, 2, 3, 6, 9, 18, 109, 218, 327, 654, 981, 1962, 10529, 21058, 31587, 63174, 94761, 189522, 1147661, 2295322, 3442983, 6885966, 10328949, 20657898]

約数ペア:

[(1, 20657898), (2, 10328949), (3, 6885966), (6, 3442983), (9, 2295322), (18, 1147661), (109, 189522), (218, 94761), (327, 63174), (654, 31587), (981, 21058), (1962, 10529)]