21937780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57731}}^1$

素因数の和:57759

約数の個数: 24

約数和(自身を含む): 48494880

約数和(自身を除く): 26557100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57731, 115462, 230924, 288655, 577310, 1096889, 1154620, 2193778, 4387556, 5484445, 10968890, 21937780]

約数ペア:

[(1, 21937780), (2, 10968890), (4, 5484445), (5, 4387556), (10, 2193778), (19, 1154620), (20, 1096889), (38, 577310), (76, 288655), (95, 230924), (190, 115462), (380, 57731)]