21995547

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{10169}}^1$

素因数の和:10282

約数の個数: 16

約数和(自身を含む): 33845760

約数和(自身を除く): 11850213

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 10169, 30507, 71183, 213549, 1047407, 3142221, 7331849, 21995547]

約数ペア:

[(1, 21995547), (3, 7331849), (7, 3142221), (21, 1047407), (103, 213549), (309, 71183), (721, 30507), (2163, 10169)]