20977628

素因数分解:

$2^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{2557}}^1$

素因数の和:2861

約数の個数: 24

約数和(自身を含む): 42114912

約数和(自身を除く): 21137284

約数列:

[1, 2, 4, 7, 14, 28, 293, 586, 1172, 2051, 2557, 4102, 5114, 8204, 10228, 17899, 35798, 71596, 749201, 1498402, 2996804, 5244407, 10488814, 20977628]

約数ペア:

[(1, 20977628), (2, 10488814), (4, 5244407), (7, 2996804), (14, 1498402), (28, 749201), (293, 71596), (586, 35798), (1172, 17899), (2051, 10228), (2557, 8204), (4102, 5114)]