21056970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63809}}^1$

素因数の和:63830

約数の個数: 32

約数和(自身を含む): 55131840

約数和(自身を除く): 34074870

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 63809, 127618, 191427, 319045, 382854, 638090, 701899, 957135, 1403798, 1914270, 2105697, 3509495, 4211394, 7018990, 10528485, 21056970]

約数ペア:

[(1, 21056970), (2, 10528485), (3, 7018990), (5, 4211394), (6, 3509495), (10, 2105697), (11, 1914270), (15, 1403798), (22, 957135), (30, 701899), (33, 638090), (55, 382854), (66, 319045), (110, 191427), (165, 127618), (330, 63809)]