21841893

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{6271}}^1$

素因数の和:6326

約数の個数: 20

約数和(自身を含む): 33392128

約数和(自身を除く): 11550235

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 6271, 18813, 56439, 169317, 269653, 507951, 808959, 2426877, 7280631, 21841893]

約数ペア:

[(1, 21841893), (3, 7280631), (9, 2426877), (27, 808959), (43, 507951), (81, 269653), (129, 169317), (387, 56439), (1161, 18813), (3483, 6271)]