21050340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4441}}^1$

素因数の和:4532

約数の個数: 48

約数和(自身を含む): 59700480

約数和(自身を除く): 38650140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4441, 4740, 8882, 13323, 17764, 22205, 26646, 44410, 53292, 66615, 88820, 133230, 266460, 350839, 701678, 1052517, 1403356, 1754195, 2105034, 3508390, 4210068, 5262585, 7016780, 10525170, 21050340]

約数ペア:

[(1, 21050340), (2, 10525170), (3, 7016780), (4, 5262585), (5, 4210068), (6, 3508390), (10, 2105034), (12, 1754195), (15, 1403356), (20, 1052517), (30, 701678), (60, 350839), (79, 266460), (158, 133230), (237, 88820), (316, 66615), (395, 53292), (474, 44410), (790, 26646), (948, 22205), (1185, 17764), (1580, 13323), (2370, 8882), (4441, 4740)]