20181978619

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{409}}^1\times {\mathrm{1031}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 23356224000

約数和(自身を除く): 3174245381

約数列:

[1, 11, 19, 209, 229, 409, 1031, 2519, 4351, 4499, 7771, 11341, 19589, 47861, 85481, 93661, 215479, 236099, 421679, 1030271, 1779559, 2597089, 4485881, 4638469, 8011901, 19575149, 49344691, 88130911, 96564491, 1062209401, 1834725329, 20181978619]

約数ペア:

[(1, 20181978619), (11, 1834725329), (19, 1062209401), (209, 96564491), (229, 88130911), (409, 49344691), (1031, 19575149), (2519, 8011901), (4351, 4638469), (4499, 4485881), (7771, 2597089), (11341, 1779559), (19589, 1030271), (47861, 421679), (85481, 236099), (93661, 215479)]