21540033

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{18553}}^1$

素因数の和:18605

約数の個数: 16

約数和(自身を含む): 32655040

約数和(自身を除く): 11115007

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 18553, 55659, 166977, 500931, 797779, 2393337, 7180011, 21540033]

約数ペア:

[(1, 21540033), (3, 7180011), (9, 2393337), (27, 797779), (43, 500931), (129, 166977), (387, 55659), (1161, 18553)]