69981457

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1801}}^1$

素因数の和:1889

約数の個数: 24

約数和(自身を含む): 89155752

約数和(自身を除く): 19174295

約数列:

[1, 7, 13, 49, 61, 91, 427, 637, 793, 1801, 2989, 5551, 12607, 23413, 38857, 88249, 109861, 163891, 769027, 1147237, 1428193, 5383189, 9997351, 69981457]

約数ペア:

[(1, 69981457), (7, 9997351), (13, 5383189), (49, 1428193), (61, 1147237), (91, 769027), (427, 163891), (637, 109861), (793, 88249), (1801, 38857), (2989, 23413), (5551, 12607)]