18873915

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{241}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 12907461

約数列:

[1, 3, 5, 15, 23, 69, 115, 227, 241, 345, 681, 723, 1135, 1205, 3405, 3615, 5221, 5543, 15663, 16629, 26105, 27715, 54707, 78315, 83145, 164121, 273535, 820605, 1258261, 3774783, 6291305, 18873915]

約数ペア:

[(1, 18873915), (3, 6291305), (5, 3774783), (15, 1258261), (23, 820605), (69, 273535), (115, 164121), (227, 83145), (241, 78315), (345, 54707), (681, 27715), (723, 26105), (1135, 16629), (1205, 15663), (3405, 5543), (3615, 5221)]