21303999

素因数分解:

$3^3\times {\mathrm{491}}^1\times {\mathrm{1607}}^1$

素因数の和:2107

約数の個数: 16

約数和(自身を含む): 31645440

約数和(自身を除く): 10341441

約数列:

[1, 3, 9, 27, 491, 1473, 1607, 4419, 4821, 13257, 14463, 43389, 789037, 2367111, 7101333, 21303999]

約数ペア:

[(1, 21303999), (3, 7101333), (9, 2367111), (27, 789037), (491, 43389), (1473, 14463), (1607, 13257), (4419, 4821)]