21083986

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4721}}^1$

素因数の和:4770

約数の個数: 32

約数和(自身を含む): 40798080

約数和(自身を除く): 19714094

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 154, 203, 319, 406, 638, 2233, 4466, 4721, 9442, 33047, 51931, 66094, 103862, 136909, 273818, 363517, 727034, 958363, 1505999, 1916726, 3011998, 10541993, 21083986]

約数ペア:

[(1, 21083986), (2, 10541993), (7, 3011998), (11, 1916726), (14, 1505999), (22, 958363), (29, 727034), (58, 363517), (77, 273818), (154, 136909), (203, 103862), (319, 66094), (406, 51931), (638, 33047), (2233, 9442), (4466, 4721)]