19858085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 7720795

約数列:

[1, 5, 13, 23, 37, 65, 115, 185, 299, 359, 481, 851, 1495, 1795, 2405, 4255, 4667, 8257, 11063, 13283, 23335, 41285, 55315, 66415, 107341, 172679, 305509, 536705, 863395, 1527545, 3971617, 19858085]

約数ペア:

[(1, 19858085), (5, 3971617), (13, 1527545), (23, 863395), (37, 536705), (65, 305509), (115, 172679), (185, 107341), (299, 66415), (359, 55315), (481, 41285), (851, 23335), (1495, 13283), (1795, 11063), (2405, 8257), (4255, 4667)]