21310280

素因数分解:

$2^3\times 5^1\times {\mathrm{532757}}^1$

素因数の和:532768

約数の個数: 16

約数和(自身を含む): 47948220

約数和(自身を除く): 26637940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 532757, 1065514, 2131028, 2663785, 4262056, 5327570, 10655140, 21310280]

約数ペア:

[(1, 21310280), (2, 10655140), (4, 5327570), (5, 4262056), (8, 2663785), (10, 2131028), (20, 1065514), (40, 532757)]