21123927

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6883}}^1$

素因数の和:6931

約数の個数: 24

約数和(自身を含む): 34364928

約数和(自身を除く): 13241001

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 1023, 3069, 6883, 20649, 61947, 75713, 213373, 227139, 640119, 681417, 1920357, 2347103, 7041309, 21123927]

約数ペア:

[(1, 21123927), (3, 7041309), (9, 2347103), (11, 1920357), (31, 681417), (33, 640119), (93, 227139), (99, 213373), (279, 75713), (341, 61947), (1023, 20649), (3069, 6883)]