21597669

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 32448000

約数和(自身を除く): 10850331

約数列:

[1, 3, 9, 31, 93, 199, 279, 389, 597, 1167, 1791, 3501, 6169, 12059, 18507, 36177, 55521, 77411, 108531, 232233, 696699, 2399741, 7199223, 21597669]

約数ペア:

[(1, 21597669), (3, 7199223), (9, 2399741), (31, 696699), (93, 232233), (199, 108531), (279, 77411), (389, 55521), (597, 36177), (1167, 18507), (1791, 12059), (3501, 6169)]