21583740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{479}}^1\times {\mathrm{751}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 60641280

約数和(自身を除く): 39057540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 479, 751, 958, 1437, 1502, 1916, 2253, 2395, 2874, 3004, 3755, 4506, 4790, 5748, 7185, 7510, 9012, 9580, 11265, 14370, 15020, 22530, 28740, 45060, 359729, 719458, 1079187, 1438916, 1798645, 2158374, 3597290, 4316748, 5395935, 7194580, 10791870, 21583740]

約数ペア:

[(1, 21583740), (2, 10791870), (3, 7194580), (4, 5395935), (5, 4316748), (6, 3597290), (10, 2158374), (12, 1798645), (15, 1438916), (20, 1079187), (30, 719458), (60, 359729), (479, 45060), (751, 28740), (958, 22530), (1437, 15020), (1502, 14370), (1916, 11265), (2253, 9580), (2395, 9012), (2874, 7510), (3004, 7185), (3755, 5748), (4506, 4790)]