1640313

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 2560896

約数和(自身を除く): 920583

約数列:

[1, 3, 9, 17, 51, 71, 151, 153, 213, 453, 639, 1207, 1359, 2567, 3621, 7701, 10721, 10863, 23103, 32163, 96489, 182257, 546771, 1640313]

約数ペア:

[(1, 1640313), (3, 546771), (9, 182257), (17, 96489), (51, 32163), (71, 23103), (151, 10863), (153, 10721), (213, 7701), (453, 3621), (639, 2567), (1207, 1359)]