21476415

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 14521281

約数列:

[1, 3, 5, 15, 41, 47, 123, 141, 205, 235, 615, 705, 743, 1927, 2229, 3715, 5781, 9635, 11145, 28905, 30463, 34921, 91389, 104763, 152315, 174605, 456945, 523815, 1431761, 4295283, 7158805, 21476415]

約数ペア:

[(1, 21476415), (3, 7158805), (5, 4295283), (15, 1431761), (41, 523815), (47, 456945), (123, 174605), (141, 152315), (205, 104763), (235, 91389), (615, 34921), (705, 30463), (743, 28905), (1927, 11145), (2229, 9635), (3715, 5781)]