20572851

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 10453389

約数列:

[1, 3, 13, 37, 39, 53, 111, 159, 269, 481, 689, 807, 1443, 1961, 2067, 3497, 5883, 9953, 10491, 14257, 25493, 29859, 42771, 76479, 129389, 185341, 388167, 527509, 556023, 1582527, 6857617, 20572851]

約数ペア:

[(1, 20572851), (3, 6857617), (13, 1582527), (37, 556023), (39, 527509), (53, 388167), (111, 185341), (159, 129389), (269, 76479), (481, 42771), (689, 29859), (807, 25493), (1443, 14257), (1961, 10491), (2067, 9953), (3497, 5883)]