20154978

素因数分解:

$2^1\times 3^2\times {\mathrm{359}}^1\times {\mathrm{3119}}^1$

素因数の和:3486

約数の個数: 24

約数和(自身を含む): 43804800

約数和(自身を除く): 23649822

約数列:

[1, 2, 3, 6, 9, 18, 359, 718, 1077, 2154, 3119, 3231, 6238, 6462, 9357, 18714, 28071, 56142, 1119721, 2239442, 3359163, 6718326, 10077489, 20154978]

約数ペア:

[(1, 20154978), (2, 10077489), (3, 6718326), (6, 3359163), (9, 2239442), (18, 1119721), (359, 56142), (718, 28071), (1077, 18714), (2154, 9357), (3119, 6462), (3231, 6238)]