21570770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2273}}^1$

素因数の和:2366

約数の個数: 32

約数和(自身を含む): 42405552

約数和(自身を除く): 20834782

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 2273, 4546, 4745, 9490, 11365, 22730, 29549, 59098, 147745, 165929, 295490, 331858, 829645, 1659290, 2157077, 4314154, 10785385, 21570770]

約数ペア:

[(1, 21570770), (2, 10785385), (5, 4314154), (10, 2157077), (13, 1659290), (26, 829645), (65, 331858), (73, 295490), (130, 165929), (146, 147745), (365, 59098), (730, 29549), (949, 22730), (1898, 11365), (2273, 9490), (4546, 4745)]