21118833

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{9901}}^1$

素因数の和:9989

約数の個数: 16

約数和(自身を含む): 31686400

約数和(自身を除く): 10567567

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 9901, 29703, 89109, 267327, 782179, 2346537, 7039611, 21118833]

約数ペア:

[(1, 21118833), (3, 7039611), (9, 2346537), (27, 782179), (79, 267327), (237, 89109), (711, 29703), (2133, 9901)]