21788410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2909}}^1$

素因数の和:3030

約数の個数: 32

約数和(自身を含む): 45256320

約数和(自身を除く): 23467910

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 107, 214, 535, 749, 1070, 1498, 2909, 3745, 5818, 7490, 14545, 20363, 29090, 40726, 101815, 203630, 311263, 622526, 1556315, 2178841, 3112630, 4357682, 10894205, 21788410]

約数ペア:

[(1, 21788410), (2, 10894205), (5, 4357682), (7, 3112630), (10, 2178841), (14, 1556315), (35, 622526), (70, 311263), (107, 203630), (214, 101815), (535, 40726), (749, 29090), (1070, 20363), (1498, 14545), (2909, 7490), (3745, 5818)]