21621843

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{11279}}^1$

素因数の和:11359

約数の個数: 16

約数和(自身を含む): 32486400

約数和(自身を除く): 10864557

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 11279, 33837, 101511, 304533, 800809, 2402427, 7207281, 21621843]

約数ペア:

[(1, 21621843), (3, 7207281), (9, 2402427), (27, 800809), (71, 304533), (213, 101511), (639, 33837), (1917, 11279)]