247619547

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1\times {\mathrm{347}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 420406272

約数和(自身を除く): 172786725

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 241, 329, 347, 423, 723, 987, 1041, 1687, 2169, 2429, 2961, 3123, 5061, 7287, 11327, 15183, 16309, 21861, 33981, 48927, 79289, 83627, 101943, 114163, 146781, 237867, 250881, 342489, 585389, 713601, 752643, 1027467, 1756167, 3930469, 5268501, 11791407, 27513283, 35374221, 82539849, 247619547]

約数ペア:

[(1, 247619547), (3, 82539849), (7, 35374221), (9, 27513283), (21, 11791407), (47, 5268501), (63, 3930469), (141, 1756167), (241, 1027467), (329, 752643), (347, 713601), (423, 585389), (723, 342489), (987, 250881), (1041, 237867), (1687, 146781), (2169, 114163), (2429, 101943), (2961, 83627), (3123, 79289), (5061, 48927), (7287, 33981), (11327, 21861), (15183, 16309)]