21877220

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{10223}}^1$

素因数の和:10339

約数の個数: 24

約数和(自身を含む): 46376064

約数和(自身を除く): 24498844

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 10223, 20446, 40892, 51115, 102230, 204460, 1093861, 2187722, 4375444, 5469305, 10938610, 21877220]

約数ペア:

[(1, 21877220), (2, 10938610), (4, 5469305), (5, 4375444), (10, 2187722), (20, 1093861), (107, 204460), (214, 102230), (428, 51115), (535, 40892), (1070, 20446), (2140, 10223)]