18691839

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 28594800

約数和(自身を除く): 9902961

約数列:

[1, 3, 9, 19, 57, 171, 281, 389, 843, 1167, 2529, 3501, 5339, 7391, 16017, 22173, 48051, 66519, 109309, 327927, 983781, 2076871, 6230613, 18691839]

約数ペア:

[(1, 18691839), (3, 6230613), (9, 2076871), (19, 983781), (57, 327927), (171, 109309), (281, 66519), (389, 48051), (843, 22173), (1167, 16017), (2529, 7391), (3501, 5339)]