20305623

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 31225600

約数和(自身を除く): 10919977

約数列:

[1, 3, 13, 19, 39, 57, 67, 201, 247, 409, 741, 871, 1227, 1273, 2613, 3819, 5317, 7771, 15951, 16549, 23313, 27403, 49647, 82209, 101023, 303069, 356239, 520657, 1068717, 1561971, 6768541, 20305623]

約数ペア:

[(1, 20305623), (3, 6768541), (13, 1561971), (19, 1068717), (39, 520657), (57, 356239), (67, 303069), (201, 101023), (247, 82209), (409, 49647), (741, 27403), (871, 23313), (1227, 16549), (1273, 15951), (2613, 7771), (3819, 5317)]