61981395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{821}}^1$

素因数の和:1555

約数の個数: 32

約数和(自身を含む): 113633280

約数和(自身を除く): 51651885

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 719, 821, 2157, 2463, 3595, 4105, 5033, 5747, 10785, 12315, 15099, 17241, 25165, 28735, 75495, 86205, 590299, 1770897, 2951495, 4132093, 8854485, 12396279, 20660465, 61981395]

約数ペア:

[(1, 61981395), (3, 20660465), (5, 12396279), (7, 8854485), (15, 4132093), (21, 2951495), (35, 1770897), (105, 590299), (719, 86205), (821, 75495), (2157, 28735), (2463, 25165), (3595, 17241), (4105, 15099), (5033, 12315), (5747, 10785)]