21000658217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{6007}}^1\times {\mathrm{45403}}^1$

素因数の和:51428

約数の個数: 16

約数和(自身を含む): 26187574272

約数和(自身を除く): 5186916055

約数列:

[1, 7, 11, 77, 6007, 42049, 45403, 66077, 317821, 462539, 499433, 3496031, 272735821, 1909150747, 3000094031, 21000658217]

約数ペア:

[(1, 21000658217), (7, 3000094031), (11, 1909150747), (77, 272735821), (6007, 3496031), (42049, 499433), (45403, 462539), (66077, 317821)]