18603963

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 32188416

約数和(自身を除く): 13584453

約数列:

[1, 3, 7, 9, 21, 47, 61, 63, 103, 141, 183, 309, 329, 423, 427, 549, 721, 927, 987, 1281, 2163, 2867, 2961, 3843, 4841, 6283, 6489, 8601, 14523, 18849, 20069, 25803, 33887, 43569, 43981, 56547, 60207, 101661, 131943, 180621, 295301, 304983, 395829, 885903, 2067107, 2657709, 6201321, 18603963]

約数ペア:

[(1, 18603963), (3, 6201321), (7, 2657709), (9, 2067107), (21, 885903), (47, 395829), (61, 304983), (63, 295301), (103, 180621), (141, 131943), (183, 101661), (309, 60207), (329, 56547), (423, 43981), (427, 43569), (549, 33887), (721, 25803), (927, 20069), (987, 18849), (1281, 14523), (2163, 8601), (2867, 6489), (2961, 6283), (3843, 4841)]