21818170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198347}}^1$

素因数の和:198365

約数の個数: 16

約数和(自身を含む): 42843168

約数和(自身を除く): 21024998

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198347, 396694, 991735, 1983470, 2181817, 4363634, 10909085, 21818170]

約数ペア:

[(1, 21818170), (2, 10909085), (5, 4363634), (10, 2181817), (11, 1983470), (22, 991735), (55, 396694), (110, 198347)]