21690838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{6569}}^1$

素因数の和:6711

約数の個数: 16

約数和(自身を含む): 35320320

約数和(自身を除く): 13629482

約数列:

[1, 2, 13, 26, 127, 254, 1651, 3302, 6569, 13138, 85397, 170794, 834263, 1668526, 10845419, 21690838]

約数ペア:

[(1, 21690838), (2, 10845419), (13, 1668526), (26, 834263), (127, 170794), (254, 85397), (1651, 13138), (3302, 6569)]