21916340

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10639}}^1$

素因数の和:10751

約数の個数: 24

約数和(自身を含む): 46475520

約数和(自身を除く): 24559180

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 10639, 21278, 42556, 53195, 106390, 212780, 1095817, 2191634, 4383268, 5479085, 10958170, 21916340]

約数ペア:

[(1, 21916340), (2, 10958170), (4, 5479085), (5, 4383268), (10, 2191634), (20, 1095817), (103, 212780), (206, 106390), (412, 53195), (515, 42556), (1030, 21278), (2060, 10639)]