21674241

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 32145984

約数和(自身を除く): 10471743

約数列:

[1, 3, 9, 71, 107, 213, 317, 321, 639, 951, 963, 2853, 7597, 22507, 22791, 33919, 67521, 68373, 101757, 202563, 305271, 2408249, 7224747, 21674241]

約数ペア:

[(1, 21674241), (3, 7224747), (9, 2408249), (71, 305271), (107, 202563), (213, 101757), (317, 68373), (321, 67521), (639, 33919), (951, 22791), (963, 22507), (2853, 7597)]