19487995

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2131}}^1$

素因数の和:2226

約数の個数: 16

約数和(自身を含む): 24560640

約数和(自身を除く): 5072645

約数列:

[1, 5, 31, 59, 155, 295, 1829, 2131, 9145, 10655, 66061, 125729, 330305, 628645, 3897599, 19487995]

約数ペア:

[(1, 19487995), (5, 3897599), (31, 628645), (59, 330305), (155, 125729), (295, 66061), (1829, 10655), (2131, 9145)]