21026871

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{6037}}^1$

素因数の和:6092

約数の個数: 20

約数和(自身を含む): 32146312

約数和(自身を除く): 11119441

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 6037, 18111, 54333, 162999, 259591, 488997, 778773, 2336319, 7008957, 21026871]

約数ペア:

[(1, 21026871), (3, 7008957), (9, 2336319), (27, 778773), (43, 488997), (81, 259591), (129, 162999), (387, 54333), (1161, 18111), (3483, 6037)]