21806337

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5737}}^1$

素因数の和:5928

約数の個数: 16

約数和(自身を含む): 33418112

約数和(自身を除く): 11611775

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5737, 17211, 40159, 120477, 1038397, 3115191, 7268779, 21806337]

約数ペア:

[(1, 21806337), (3, 7268779), (7, 3115191), (21, 1038397), (181, 120477), (543, 40159), (1267, 17211), (3801, 5737)]