20828049109

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{503543}}^1$

素因数の和:503880

約数の個数: 16

約数和(自身を含む): 25136916480

約数和(自身を除く): 4308867371

約数列:

[1, 7, 19, 133, 311, 2177, 5909, 41363, 503543, 3524801, 9567317, 66971219, 156601873, 1096213111, 2975435587, 20828049109]

約数ペア:

[(1, 20828049109), (7, 2975435587), (19, 1096213111), (133, 156601873), (311, 66971219), (2177, 9567317), (5909, 3524801), (41363, 503543)]