21936411

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15139}}^1$

素因数の和:15175

約数の個数: 24

約数和(自身を含む): 37789440

約数和(自身を除く): 15853029

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 15139, 45417, 105973, 136251, 317919, 348197, 953757, 1044591, 2437379, 3133773, 7312137, 21936411]

約数ペア:

[(1, 21936411), (3, 7312137), (7, 3133773), (9, 2437379), (21, 1044591), (23, 953757), (63, 348197), (69, 317919), (161, 136251), (207, 105973), (483, 45417), (1449, 15139)]