20507019

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3529}}^1$

素因数の和:3694

約数の個数: 16

約数和(自身を含む): 29652000

約数和(自身を除く): 9144981

約数列:

[1, 3, 13, 39, 149, 447, 1937, 3529, 5811, 10587, 45877, 137631, 525821, 1577463, 6835673, 20507019]

約数ペア:

[(1, 20507019), (3, 6835673), (13, 1577463), (39, 525821), (149, 137631), (447, 45877), (1937, 10587), (3529, 5811)]