21938313

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2887}}^1$

素因数の和:3056

約数の個数: 16

約数和(自身を含む): 31190400

約数和(自身を除く): 9252087

約数列:

[1, 3, 17, 51, 149, 447, 2533, 2887, 7599, 8661, 49079, 147237, 430163, 1290489, 7312771, 21938313]

約数ペア:

[(1, 21938313), (3, 7312771), (17, 1290489), (51, 430163), (149, 147237), (447, 49079), (2533, 8661), (2887, 7599)]