61660081

素因数分解:

$7^4\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:510

約数の個数: 20

約数和(自身を含む): 73285364

約数和(自身を除く): 11625283

約数列:

[1, 7, 49, 61, 343, 421, 427, 2401, 2947, 2989, 20629, 20923, 25681, 144403, 146461, 179767, 1010821, 1258369, 8808583, 61660081]

約数ペア:

[(1, 61660081), (7, 8808583), (49, 1258369), (61, 1010821), (343, 179767), (421, 146461), (427, 144403), (2401, 25681), (2947, 20923), (2989, 20629)]