21152808970

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1199819}}^1$

素因数の和:1199910

約数の個数: 32

約数和(自身を含む): 39910812480

約数和(自身を除く): 18758003510

約数列:

[1, 2, 5, 10, 41, 43, 82, 86, 205, 215, 410, 430, 1763, 3526, 8815, 17630, 1199819, 2399638, 5999095, 11998190, 49192579, 51592217, 98385158, 103184434, 245962895, 257961085, 491925790, 515922170, 2115280897, 4230561794, 10576404485, 21152808970]

約数ペア:

[(1, 21152808970), (2, 10576404485), (5, 4230561794), (10, 2115280897), (41, 515922170), (43, 491925790), (82, 257961085), (86, 245962895), (205, 103184434), (215, 98385158), (410, 51592217), (430, 49192579), (1763, 11998190), (3526, 5999095), (8815, 2399638), (17630, 1199819)]