21494620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{153533}}^1$

素因数の和:153549

約数の個数: 24

約数和(自身を含む): 51587424

約数和(自身を除く): 30092804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 153533, 307066, 614132, 767665, 1074731, 1535330, 2149462, 3070660, 4298924, 5373655, 10747310, 21494620]

約数ペア:

[(1, 21494620), (2, 10747310), (4, 5373655), (5, 4298924), (7, 3070660), (10, 2149462), (14, 1535330), (20, 1074731), (28, 767665), (35, 614132), (70, 307066), (140, 153533)]