21365085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{719}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 39260160

約数和(自身を除く): 17895075

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 283, 719, 849, 1415, 1981, 2157, 3595, 4245, 5033, 5943, 9905, 10785, 15099, 25165, 29715, 75495, 203477, 610431, 1017385, 1424339, 3052155, 4273017, 7121695, 21365085]

約数ペア:

[(1, 21365085), (3, 7121695), (5, 4273017), (7, 3052155), (15, 1424339), (21, 1017385), (35, 610431), (105, 203477), (283, 75495), (719, 29715), (849, 25165), (1415, 15099), (1981, 10785), (2157, 9905), (3595, 5943), (4245, 5033)]