21097448

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138799}}^1$

素因数の和:138824

約数の個数: 16

約数和(自身を含む): 41640000

約数和(自身を除く): 20542552

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138799, 277598, 555196, 1110392, 2637181, 5274362, 10548724, 21097448]

約数ペア:

[(1, 21097448), (2, 10548724), (4, 5274362), (8, 2637181), (19, 1110392), (38, 555196), (76, 277598), (152, 138799)]