18173820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43271}}^1$

素因数の和:43290

約数の個数: 48

約数和(自身を含む): 58157568

約数和(自身を除く): 39983748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43271, 86542, 129813, 173084, 216355, 259626, 302897, 432710, 519252, 605794, 649065, 865420, 908691, 1211588, 1298130, 1514485, 1817382, 2596260, 3028970, 3634764, 4543455, 6057940, 9086910, 18173820]

約数ペア:

[(1, 18173820), (2, 9086910), (3, 6057940), (4, 4543455), (5, 3634764), (6, 3028970), (7, 2596260), (10, 1817382), (12, 1514485), (14, 1298130), (15, 1211588), (20, 908691), (21, 865420), (28, 649065), (30, 605794), (35, 519252), (42, 432710), (60, 302897), (70, 259626), (84, 216355), (105, 173084), (140, 129813), (210, 86542), (420, 43271)]