21091642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2543}}^1$

素因数の和:2598

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 17373638

約数列:

[1, 2, 11, 13, 22, 26, 29, 58, 143, 286, 319, 377, 638, 754, 2543, 4147, 5086, 8294, 27973, 33059, 55946, 66118, 73747, 147494, 363649, 727298, 811217, 958711, 1622434, 1917422, 10545821, 21091642]

約数ペア:

[(1, 21091642), (2, 10545821), (11, 1917422), (13, 1622434), (22, 958711), (26, 811217), (29, 727298), (58, 363649), (143, 147494), (286, 73747), (319, 66118), (377, 55946), (638, 33059), (754, 27973), (2543, 8294), (4147, 5086)]