138972379

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{7523}}^1$

素因数の和:7579

約数の個数: 24

約数和(自身を含む): 180124560

約数和(自身を除く): 41152181

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 1421, 2639, 7523, 18473, 52661, 97799, 218167, 368627, 684593, 1527169, 2836171, 4792151, 10690183, 19853197, 138972379]

約数ペア:

[(1, 138972379), (7, 19853197), (13, 10690183), (29, 4792151), (49, 2836171), (91, 1527169), (203, 684593), (377, 368627), (637, 218167), (1421, 97799), (2639, 52661), (7523, 18473)]