20210875396

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{981301}}^1$

素因数の和:981595

約数の個数: 24

約数和(自身を含む): 37367980160

約数和(自身を除く): 17157104764

約数列:

[1, 2, 4, 19, 38, 76, 271, 542, 1084, 5149, 10298, 20596, 981301, 1962602, 3925204, 18644719, 37289438, 74578876, 265932571, 531865142, 1063730284, 5052718849, 10105437698, 20210875396]

約数ペア:

[(1, 20210875396), (2, 10105437698), (4, 5052718849), (19, 1063730284), (38, 531865142), (76, 265932571), (271, 74578876), (542, 37289438), (1084, 18644719), (5149, 3925204), (10298, 1962602), (20596, 981301)]