19618767

素因数分解:

$3^4\times 7^2\times {\mathrm{4943}}^1$

素因数の和:4969

約数の個数: 30

約数和(自身を含む): 34098768

約数和(自身を除く): 14480001

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4943, 14829, 34601, 44487, 103803, 133461, 242207, 311409, 400383, 726621, 934227, 2179863, 2802681, 6539589, 19618767]

約数ペア:

[(1, 19618767), (3, 6539589), (7, 2802681), (9, 2179863), (21, 934227), (27, 726621), (49, 400383), (63, 311409), (81, 242207), (147, 133461), (189, 103803), (441, 44487), (567, 34601), (1323, 14829), (3969, 4943)]