21347650

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3917}}^1$

素因数の和:4038

約数の個数: 24

約数和(自身を含む): 40081140

約数和(自身を除く): 18733490

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3917, 5450, 7834, 19585, 39170, 97925, 195850, 426953, 853906, 2134765, 4269530, 10673825, 21347650]

約数ペア:

[(1, 21347650), (2, 10673825), (5, 4269530), (10, 2134765), (25, 853906), (50, 426953), (109, 195850), (218, 97925), (545, 39170), (1090, 19585), (2725, 7834), (3917, 5450)]