19872721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 22394880

約数和(自身を除く): 2522159

約数列:

[1, 11, 53, 89, 383, 583, 979, 4213, 4717, 20299, 34087, 51887, 223289, 374957, 1806611, 19872721]

約数ペア:

[(1, 19872721), (11, 1806611), (53, 374957), (89, 223289), (383, 51887), (583, 34087), (979, 20299), (4213, 4717)]