20087921

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2069}}^1$

素因数の和:2168

約数の個数: 16

約数和(自身を含む): 24508800

約数和(自身を除く): 4420879

約数列:

[1, 7, 19, 73, 133, 511, 1387, 2069, 9709, 14483, 39311, 151037, 275177, 1057259, 2869703, 20087921]

約数ペア:

[(1, 20087921), (7, 2869703), (19, 1057259), (73, 275177), (133, 151037), (511, 39311), (1387, 14483), (2069, 9709)]