21161510

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 39184992

約数和(自身を除く): 18023482

約数列:

[1, 2, 5, 10, 61, 113, 122, 226, 305, 307, 565, 610, 614, 1130, 1535, 3070, 6893, 13786, 18727, 34465, 34691, 37454, 68930, 69382, 93635, 173455, 187270, 346910, 2116151, 4232302, 10580755, 21161510]

約数ペア:

[(1, 21161510), (2, 10580755), (5, 4232302), (10, 2116151), (61, 346910), (113, 187270), (122, 173455), (226, 93635), (305, 69382), (307, 68930), (565, 37454), (610, 34691), (614, 34465), (1130, 18727), (1535, 13786), (3070, 6893)]