19147121

素因数分解:

$7^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 22372224

約数和(自身を除く): 3225103

約数列:

[1, 7, 97, 163, 173, 679, 1141, 1211, 15811, 16781, 28199, 110677, 117467, 197393, 2735303, 19147121]

約数ペア:

[(1, 19147121), (7, 2735303), (97, 197393), (163, 117467), (173, 110677), (679, 28199), (1141, 16781), (1211, 15811)]