21121785999

素因数分解:

$3^2\times {\mathrm{19433}}^1\times {\mathrm{120767}}^1$

素因数の和:140206

約数の個数: 12

約数和(自身を含む): 30511069056

約数和(自身を除く): 9389283057

約数列:

[1, 3, 9, 19433, 58299, 120767, 174897, 362301, 1086903, 2346865111, 7040595333, 21121785999]

約数ペア:

[(1, 21121785999), (3, 7040595333), (9, 2346865111), (19433, 1086903), (58299, 362301), (120767, 174897)]