31970235

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2729}}^1$

素因数の和:2819

約数の個数: 32

約数和(自身を含む): 56609280

約数和(自身を除く): 24639045

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 2343, 2729, 3905, 8187, 11715, 13645, 30019, 40935, 90057, 150095, 193759, 450285, 581277, 968795, 2131349, 2906385, 6394047, 10656745, 31970235]

約数ペア:

[(1, 31970235), (3, 10656745), (5, 6394047), (11, 2906385), (15, 2131349), (33, 968795), (55, 581277), (71, 450285), (165, 193759), (213, 150095), (355, 90057), (781, 40935), (1065, 30019), (2343, 13645), (2729, 11715), (3905, 8187)]