21356220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355937}}^1$

素因数の和:355949

約数の個数: 24

約数和(自身を含む): 59797584

約数和(自身を除く): 38441364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355937, 711874, 1067811, 1423748, 1779685, 2135622, 3559370, 4271244, 5339055, 7118740, 10678110, 21356220]

約数ペア:

[(1, 21356220), (2, 10678110), (3, 7118740), (4, 5339055), (5, 4271244), (6, 3559370), (10, 2135622), (12, 1779685), (15, 1423748), (20, 1067811), (30, 711874), (60, 355937)]