1220121

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 2044224

約数和(自身を除く): 824103

約数列:

[1, 3, 7, 9, 21, 63, 107, 181, 321, 543, 749, 963, 1267, 1629, 2247, 3801, 6741, 11403, 19367, 58101, 135569, 174303, 406707, 1220121]

約数ペア:

[(1, 1220121), (3, 406707), (7, 174303), (9, 135569), (21, 58101), (63, 19367), (107, 11403), (181, 6741), (321, 3801), (543, 2247), (749, 1629), (963, 1267)]