28210819

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 35922768

約数和(自身を除く): 7711949

約数列:

[1, 7, 13, 49, 67, 91, 469, 637, 661, 871, 3283, 4627, 6097, 8593, 32389, 42679, 44287, 60151, 310009, 421057, 575731, 2170063, 4030117, 28210819]

約数ペア:

[(1, 28210819), (7, 4030117), (13, 2170063), (49, 575731), (67, 421057), (91, 310009), (469, 60151), (637, 44287), (661, 42679), (871, 32389), (3283, 8593), (4627, 6097)]