21238959

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43973}}^1$

素因数の和:44006

約数の個数: 16

約数和(自身を含む): 33772032

約数和(自身を除く): 12533073

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43973, 131919, 307811, 923433, 1011379, 3034137, 7079653, 21238959]

約数ペア:

[(1, 21238959), (3, 7079653), (7, 3034137), (21, 1011379), (23, 923433), (69, 307811), (161, 131919), (483, 43973)]