42157885

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{15643}}^1$

素因数の和:15673

約数の個数: 24

約数和(自身を含む): 64202976

約数和(自身を除く): 22045091

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 15643, 78215, 109501, 172073, 547505, 766507, 860365, 1204511, 3832535, 6022555, 8431577, 42157885]

約数ペア:

[(1, 42157885), (5, 8431577), (7, 6022555), (11, 3832535), (35, 1204511), (49, 860365), (55, 766507), (77, 547505), (245, 172073), (385, 109501), (539, 78215), (2695, 15643)]