18221679

素因数分解:

$3^4\times 7^2\times {\mathrm{4591}}^1$

素因数の和:4617

約数の個数: 30

約数和(自身を含む): 31671024

約数和(自身を除く): 13449345

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4591, 13773, 32137, 41319, 96411, 123957, 224959, 289233, 371871, 674877, 867699, 2024631, 2603097, 6073893, 18221679]

約数ペア:

[(1, 18221679), (3, 6073893), (7, 2603097), (9, 2024631), (21, 867699), (27, 674877), (49, 371871), (63, 289233), (81, 224959), (147, 123957), (189, 96411), (441, 41319), (567, 32137), (1323, 13773), (3969, 4591)]