20956728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67169}}^1$

素因数の和:67191

約数の個数: 32

約数和(自身を含む): 56422800

約数和(自身を除く): 35466072

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67169, 134338, 201507, 268676, 403014, 537352, 806028, 873197, 1612056, 1746394, 2619591, 3492788, 5239182, 6985576, 10478364, 20956728]

約数ペア:

[(1, 20956728), (2, 10478364), (3, 6985576), (4, 5239182), (6, 3492788), (8, 2619591), (12, 1746394), (13, 1612056), (24, 873197), (26, 806028), (39, 537352), (52, 403014), (78, 268676), (104, 201507), (156, 134338), (312, 67169)]