21338580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355643}}^1$

素因数の和:355655

約数の個数: 24

約数和(自身を含む): 59748192

約数和(自身を除く): 38409612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355643, 711286, 1066929, 1422572, 1778215, 2133858, 3556430, 4267716, 5334645, 7112860, 10669290, 21338580]

約数ペア:

[(1, 21338580), (2, 10669290), (3, 7112860), (4, 5334645), (5, 4267716), (6, 3556430), (10, 2133858), (12, 1778215), (15, 1422572), (20, 1066929), (30, 711286), (60, 355643)]