20794257

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 13800303

約数列:

[1, 3, 9, 11, 33, 41, 47, 99, 109, 123, 141, 327, 369, 423, 451, 517, 981, 1199, 1353, 1551, 1927, 3597, 4059, 4469, 4653, 5123, 5781, 10791, 13407, 15369, 17343, 21197, 40221, 46107, 49159, 56353, 63591, 147477, 169059, 190773, 210043, 442431, 507177, 630129, 1890387, 2310473, 6931419, 20794257]

約数ペア:

[(1, 20794257), (3, 6931419), (9, 2310473), (11, 1890387), (33, 630129), (41, 507177), (47, 442431), (99, 210043), (109, 190773), (123, 169059), (141, 147477), (327, 63591), (369, 56353), (423, 49159), (451, 46107), (517, 40221), (981, 21197), (1199, 17343), (1353, 15369), (1551, 13407), (1927, 10791), (3597, 5781), (4059, 5123), (4469, 4653)]