21026200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8087}}^1$

素因数の和:8116

約数の個数: 48

約数和(自身を含む): 52652880

約数和(自身を除く): 31626680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8087, 16174, 32348, 40435, 64696, 80870, 105131, 161740, 202175, 210262, 323480, 404350, 420524, 525655, 808700, 841048, 1051310, 1617400, 2102620, 2628275, 4205240, 5256550, 10513100, 21026200]

約数ペア:

[(1, 21026200), (2, 10513100), (4, 5256550), (5, 4205240), (8, 2628275), (10, 2102620), (13, 1617400), (20, 1051310), (25, 841048), (26, 808700), (40, 525655), (50, 420524), (52, 404350), (65, 323480), (100, 210262), (104, 202175), (130, 161740), (200, 105131), (260, 80870), (325, 64696), (520, 40435), (650, 32348), (1300, 16174), (2600, 8087)]