13406939

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{1619}}^1$

素因数の和:1659

約数の個数: 18

約数和(自身を含む): 16898220

約数和(自身を除く): 3491281

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 1619, 8281, 11333, 21047, 79331, 147329, 273611, 1031303, 1915277, 13406939]

約数ペア:

[(1, 13406939), (7, 1915277), (13, 1031303), (49, 273611), (91, 147329), (169, 79331), (637, 21047), (1183, 11333), (1619, 8281)]