21454615

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 32247936

約数和(自身を除く): 10793321

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 305, 427, 455, 773, 793, 2135, 3865, 3965, 5411, 5551, 10049, 27055, 27755, 47153, 50245, 70343, 235765, 330071, 351715, 612989, 1650355, 3064945, 4290923, 21454615]

約数ペア:

[(1, 21454615), (5, 4290923), (7, 3064945), (13, 1650355), (35, 612989), (61, 351715), (65, 330071), (91, 235765), (305, 70343), (427, 50245), (455, 47153), (773, 27755), (793, 27055), (2135, 10049), (3865, 5551), (3965, 5411)]