20189940399

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{20580979}}^1$

素因数の和:20581094

約数の個数: 12

約数和(自身を含む): 29430801400

約数和(自身を除く): 9240861001

約数列:

[1, 3, 9, 109, 327, 981, 20580979, 61742937, 185228811, 2243326711, 6729980133, 20189940399]

約数ペア:

[(1, 20189940399), (3, 6729980133), (9, 2243326711), (109, 185228811), (327, 61742937), (981, 20580979)]