21543939

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 32697600

約数和(自身を除く): 11153661

約数列:

[1, 3, 9, 23, 69, 199, 207, 523, 597, 1569, 1791, 4577, 4707, 12029, 13731, 36087, 41193, 104077, 108261, 312231, 936693, 2393771, 7181313, 21543939]

約数ペア:

[(1, 21543939), (3, 7181313), (9, 2393771), (23, 936693), (69, 312231), (199, 108261), (207, 104077), (523, 41193), (597, 36087), (1569, 13731), (1791, 12029), (4577, 4707)]