20798631

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6229}}^1$

素因数の和:6295

約数の個数: 24

約数和(自身を含む): 34987680

約数和(自身を除く): 14189049

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6229, 18687, 43603, 56061, 130809, 330137, 392427, 990411, 2310959, 2971233, 6932877, 20798631]

約数ペア:

[(1, 20798631), (3, 6932877), (7, 2971233), (9, 2310959), (21, 990411), (53, 392427), (63, 330137), (159, 130809), (371, 56061), (477, 43603), (1113, 18687), (3339, 6229)]