20857998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6803}}^1$

素因数の和:6888

約数の個数: 32

約数和(自身を含む): 48335616

約数和(自身を除く): 27477618

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 146, 219, 438, 511, 1022, 1533, 3066, 6803, 13606, 20409, 40818, 47621, 95242, 142863, 285726, 496619, 993238, 1489857, 2979714, 3476333, 6952666, 10428999, 20857998]

約数ペア:

[(1, 20857998), (2, 10428999), (3, 6952666), (6, 3476333), (7, 2979714), (14, 1489857), (21, 993238), (42, 496619), (73, 285726), (146, 142863), (219, 95242), (438, 47621), (511, 40818), (1022, 20409), (1533, 13606), (3066, 6803)]