19666995

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{457}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 33415680

約数和(自身を除く): 13748685

約数列:

[1, 3, 5, 15, 19, 57, 95, 151, 285, 453, 457, 755, 1371, 2265, 2285, 2869, 6855, 8607, 8683, 14345, 26049, 43035, 43415, 69007, 130245, 207021, 345035, 1035105, 1311133, 3933399, 6555665, 19666995]

約数ペア:

[(1, 19666995), (3, 6555665), (5, 3933399), (15, 1311133), (19, 1035105), (57, 345035), (95, 207021), (151, 130245), (285, 69007), (453, 43415), (457, 43035), (755, 26049), (1371, 14345), (2265, 8683), (2285, 8607), (2869, 6855)]