21073844

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43541}}^1$

素因数の和:43567

約数の個数: 18

約数和(自身を含む): 40537602

約数和(自身を除く): 19463758

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43541, 87082, 174164, 478951, 957902, 1915804, 5268461, 10536922, 21073844]

約数ペア:

[(1, 21073844), (2, 10536922), (4, 5268461), (11, 1915804), (22, 957902), (44, 478951), (121, 174164), (242, 87082), (484, 43541)]