21862445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20921}}^1$

素因数の和:20956

約数の個数: 16

約数和(自身を含む): 30127680

約数和(自身を除く): 8265235

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20921, 104605, 230131, 397499, 1150655, 1987495, 4372489, 21862445]

約数ペア:

[(1, 21862445), (5, 4372489), (11, 1987495), (19, 1150655), (55, 397499), (95, 230131), (209, 104605), (1045, 20921)]