21099873

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5237}}^1$

素因数の和:5336

約数の個数: 16

約数和(自身を含む): 30170880

約数和(自身を除く): 9071007

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5237, 15711, 89029, 267087, 413723, 1241169, 7033291, 21099873]

約数ペア:

[(1, 21099873), (3, 7033291), (17, 1241169), (51, 413723), (79, 267087), (237, 89029), (1343, 15711), (4029, 5237)]