21582220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98101}}^1$

素因数の和:98121

約数の個数: 24

約数和(自身を含む): 49443408

約数和(自身を除く): 27861188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98101, 196202, 392404, 490505, 981010, 1079111, 1962020, 2158222, 4316444, 5395555, 10791110, 21582220]

約数ペア:

[(1, 21582220), (2, 10791110), (4, 5395555), (5, 4316444), (10, 2158222), (11, 1962020), (20, 1079111), (22, 981010), (44, 490505), (55, 392404), (110, 196202), (220, 98101)]