21103239

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9623}}^1$

素因数の和:9686

約数の個数: 16

約数和(自身を含む): 30488832

約数和(自身を除く): 9385593

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9623, 28869, 163591, 413789, 490773, 1241367, 7034413, 21103239]

約数ペア:

[(1, 21103239), (3, 7034413), (17, 1241367), (43, 490773), (51, 413789), (129, 163591), (731, 28869), (2193, 9623)]