20656998

素因数分解:

$2^1\times 3^3\times {\mathrm{277}}^1\times {\mathrm{1381}}^1$

素因数の和:1669

約数の個数: 32

約数和(自身を含む): 46103520

約数和(自身を除く): 25446522

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 277, 554, 831, 1381, 1662, 2493, 2762, 4143, 4986, 7479, 8286, 12429, 14958, 24858, 37287, 74574, 382537, 765074, 1147611, 2295222, 3442833, 6885666, 10328499, 20656998]

約数ペア:

[(1, 20656998), (2, 10328499), (3, 6885666), (6, 3442833), (9, 2295222), (18, 1147611), (27, 765074), (54, 382537), (277, 74574), (554, 37287), (831, 24858), (1381, 14958), (1662, 12429), (2493, 8286), (2762, 7479), (4143, 4986)]