2821617

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 4365504

約数和(自身を除く): 1543887

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 317, 387, 951, 989, 2853, 2967, 7291, 8901, 13631, 21873, 40893, 65619, 122679, 313513, 940539, 2821617]

約数ペア:

[(1, 2821617), (3, 940539), (9, 313513), (23, 122679), (43, 65619), (69, 40893), (129, 21873), (207, 13631), (317, 8901), (387, 7291), (951, 2967), (989, 2853)]