21040845

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28627}}^1$

素因数の和:28649

約数の個数: 24

約数和(自身を含む): 39163104

約数和(自身を除く): 18122259

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28627, 85881, 143135, 200389, 429405, 601167, 1001945, 1402723, 3005835, 4208169, 7013615, 21040845]

約数ペア:

[(1, 21040845), (3, 7013615), (5, 4208169), (7, 3005835), (15, 1402723), (21, 1001945), (35, 601167), (49, 429405), (105, 200389), (147, 143135), (245, 85881), (735, 28627)]