622668137

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{19949}}^1$

素因数の和:19990

約数の個数: 20

約数和(自身を含む): 782319300

約数和(自身を除く): 159651163

約数列:

[1, 7, 13, 49, 91, 343, 637, 2401, 4459, 19949, 31213, 139643, 259337, 977501, 1815359, 6842507, 12707513, 47897549, 88952591, 622668137]

約数ペア:

[(1, 622668137), (7, 88952591), (13, 47897549), (49, 12707513), (91, 6842507), (343, 1815359), (637, 977501), (2401, 259337), (4459, 139643), (19949, 31213)]