18071641

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:146

約数の個数: 32

約数和(自身を含む): 23040000

約数和(自身を除く): 4968359

約数列:

[1, 7, 19, 47, 49, 59, 133, 329, 343, 413, 893, 931, 1121, 2303, 2773, 2891, 6251, 6517, 7847, 16121, 19411, 20237, 43757, 52687, 54929, 135877, 306299, 368809, 384503, 951139, 2581663, 18071641]

約数ペア:

[(1, 18071641), (7, 2581663), (19, 951139), (47, 384503), (49, 368809), (59, 306299), (133, 135877), (329, 54929), (343, 52687), (413, 43757), (893, 20237), (931, 19411), (1121, 16121), (2303, 7847), (2773, 6517), (2891, 6251)]