30921993

素因数分解:

$3^9\times {\mathrm{1571}}^1$

素因数の和:1598

約数の個数: 20

約数和(自身を含む): 46411728

約数和(自身を除く): 15489735

約数列:

[1, 3, 9, 27, 81, 243, 729, 1571, 2187, 4713, 6561, 14139, 19683, 42417, 127251, 381753, 1145259, 3435777, 10307331, 30921993]

約数ペア:

[(1, 30921993), (3, 10307331), (9, 3435777), (27, 1145259), (81, 381753), (243, 127251), (729, 42417), (1571, 19683), (2187, 14139), (4713, 6561)]