19093985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2621}}^1$

素因数の和:2704

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 5070367

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2621, 7285, 13105, 81251, 123187, 406255, 615935, 3818797, 19093985]

約数ペア:

[(1, 19093985), (5, 3818797), (31, 615935), (47, 406255), (155, 123187), (235, 81251), (1457, 13105), (2621, 7285)]