261890629

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4289}}^1$

素因数の和:4381

約数の個数: 32

約数和(自身を含む): 357477120

約数和(自身を除く): 95586491

約数列:

[1, 7, 11, 13, 61, 77, 91, 143, 427, 671, 793, 1001, 4289, 4697, 5551, 8723, 30023, 47179, 55757, 61061, 261629, 330253, 390299, 613327, 1831403, 2877919, 3401177, 4293289, 20145433, 23808239, 37412947, 261890629]

約数ペア:

[(1, 261890629), (7, 37412947), (11, 23808239), (13, 20145433), (61, 4293289), (77, 3401177), (91, 2877919), (143, 1831403), (427, 613327), (671, 390299), (793, 330253), (1001, 261629), (4289, 61061), (4697, 55757), (5551, 47179), (8723, 30023)]