19926675

素因数分解:

$3^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 37363680

約数和(自身を除く): 17437005

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 135, 159, 225, 265, 477, 557, 675, 795, 1325, 1431, 1671, 2385, 2785, 3975, 5013, 7155, 8355, 11925, 13925, 15039, 25065, 29521, 35775, 41775, 75195, 88563, 125325, 147605, 265689, 375975, 442815, 738025, 797067, 1328445, 2214075, 3985335, 6642225, 19926675]

約数ペア:

[(1, 19926675), (3, 6642225), (5, 3985335), (9, 2214075), (15, 1328445), (25, 797067), (27, 738025), (45, 442815), (53, 375975), (75, 265689), (135, 147605), (159, 125325), (225, 88563), (265, 75195), (477, 41775), (557, 35775), (675, 29521), (795, 25065), (1325, 15039), (1431, 13925), (1671, 11925), (2385, 8355), (2785, 7155), (3975, 5013)]