21681147

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{8093}}^1$

素因数の和:8162

約数の個数: 16

約数和(自身を含む): 31080960

約数和(自身を除く): 9399813

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 8093, 24279, 153767, 380371, 461301, 1141113, 7227049, 21681147]

約数ペア:

[(1, 21681147), (3, 7227049), (19, 1141113), (47, 461301), (57, 380371), (141, 153767), (893, 24279), (2679, 8093)]