21906535

素因数分解:

$5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1609}}^1$

素因数の和:2010

約数の個数: 16

約数和(自身を含む): 30139200

約数和(自身を除く): 8232665

約数列:

[1, 5, 7, 35, 389, 1609, 1945, 2723, 8045, 11263, 13615, 56315, 625901, 3129505, 4381307, 21906535]

約数ペア:

[(1, 21906535), (5, 4381307), (7, 3129505), (35, 625901), (389, 56315), (1609, 13615), (1945, 11263), (2723, 8045)]