21052665

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24623}}^1$

素因数の和:24653

約数の個数: 24

約数和(自身を含む): 38413440

約数和(自身を除く): 17360775

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 24623, 73869, 123115, 221607, 369345, 467837, 1108035, 1403511, 2339185, 4210533, 7017555, 21052665]

約数ペア:

[(1, 21052665), (3, 7017555), (5, 4210533), (9, 2339185), (15, 1403511), (19, 1108035), (45, 467837), (57, 369345), (95, 221607), (171, 123115), (285, 73869), (855, 24623)]