18921746

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 32

約数和(自身を含む): 30769200

約数和(自身を除く): 11847454

約数列:

[1, 2, 29, 41, 58, 73, 82, 109, 146, 218, 1189, 2117, 2378, 2993, 3161, 4234, 4469, 5986, 6322, 7957, 8938, 15914, 86797, 129601, 173594, 230753, 259202, 326237, 461506, 652474, 9460873, 18921746]

約数ペア:

[(1, 18921746), (2, 9460873), (29, 652474), (41, 461506), (58, 326237), (73, 259202), (82, 230753), (109, 173594), (146, 129601), (218, 86797), (1189, 15914), (2117, 8938), (2378, 7957), (2993, 6322), (3161, 5986), (4234, 4469)]