21157770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{705259}}^1$

素因数の和:705269

約数の個数: 16

約数和(自身を含む): 50778720

約数和(自身を除く): 29620950

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 705259, 1410518, 2115777, 3526295, 4231554, 7052590, 10578885, 21157770]

約数ペア:

[(1, 21157770), (2, 10578885), (3, 7052590), (5, 4231554), (6, 3526295), (10, 2115777), (15, 1410518), (30, 705259)]