20710821

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5179}}^1$

素因数の和:5256

約数の個数: 16

約数和(自身を含む): 29173760

約数和(自身を除く): 8462939

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5179, 15537, 160549, 222697, 481647, 668091, 6903607, 20710821]

約数ペア:

[(1, 20710821), (3, 6903607), (31, 668091), (43, 481647), (93, 222697), (129, 160549), (1333, 15537), (3999, 5179)]