20192781

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 12321267

約数列:

[1, 3, 7, 21, 23, 69, 97, 161, 291, 431, 483, 679, 1293, 2037, 2231, 3017, 6693, 9051, 9913, 15617, 29739, 41807, 46851, 69391, 125421, 208173, 292649, 877947, 961561, 2884683, 6730927, 20192781]

約数ペア:

[(1, 20192781), (3, 6730927), (7, 2884683), (21, 961561), (23, 877947), (69, 292649), (97, 208173), (161, 125421), (291, 69391), (431, 46851), (483, 41807), (679, 29739), (1293, 15617), (2037, 9913), (2231, 9051), (3017, 6693)]