21361490

素因数分解:

$2^1\times 5^1\times {\mathrm{719}}^1\times {\mathrm{2971}}^1$

素因数の和:3697

約数の個数: 16

約数和(自身を含む): 38517120

約数和(自身を除く): 17155630

約数列:

[1, 2, 5, 10, 719, 1438, 2971, 3595, 5942, 7190, 14855, 29710, 2136149, 4272298, 10680745, 21361490]

約数ペア:

[(1, 21361490), (2, 10680745), (5, 4272298), (10, 2136149), (719, 29710), (1438, 14855), (2971, 7190), (3595, 5942)]