20216493

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1583}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13237587

約数列:

[1, 3, 9, 11, 27, 33, 43, 99, 129, 297, 387, 473, 1161, 1419, 1583, 4257, 4749, 12771, 14247, 17413, 42741, 52239, 68069, 156717, 204207, 470151, 612621, 748759, 1837863, 2246277, 6738831, 20216493]

約数ペア:

[(1, 20216493), (3, 6738831), (9, 2246277), (11, 1837863), (27, 748759), (33, 612621), (43, 470151), (99, 204207), (129, 156717), (297, 68069), (387, 52239), (473, 42741), (1161, 17413), (1419, 14247), (1583, 12771), (4257, 4749)]