12457221

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1021}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 19573344

約数和(自身を除く): 7116123

約数列:

[1, 3, 7, 21, 49, 83, 147, 249, 581, 1021, 1743, 3063, 4067, 7147, 12201, 21441, 50029, 84743, 150087, 254229, 593201, 1779603, 4152407, 12457221]

約数ペア:

[(1, 12457221), (3, 4152407), (7, 1779603), (21, 593201), (49, 254229), (83, 150087), (147, 84743), (249, 50029), (581, 21441), (1021, 12201), (1743, 7147), (3063, 4067)]