28491813

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{719}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 22726107

約数列:

[1, 3, 7, 9, 17, 21, 37, 51, 63, 111, 119, 153, 259, 333, 357, 629, 719, 777, 1071, 1887, 2157, 2331, 4403, 5033, 5661, 6471, 12223, 13209, 15099, 26603, 36669, 39627, 45297, 79809, 85561, 110007, 186221, 239427, 256683, 452251, 558663, 770049, 1356753, 1675989, 3165757, 4070259, 9497271, 28491813]

約数ペア:

[(1, 28491813), (3, 9497271), (7, 4070259), (9, 3165757), (17, 1675989), (21, 1356753), (37, 770049), (51, 558663), (63, 452251), (111, 256683), (119, 239427), (153, 186221), (259, 110007), (333, 85561), (357, 79809), (629, 45297), (719, 39627), (777, 36669), (1071, 26603), (1887, 15099), (2157, 13209), (2331, 12223), (4403, 6471), (5033, 5661)]