21681579

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{10369}}^1$

素因数の和:10430

約数の個数: 16

約数和(自身を含む): 31358880

約数和(自身を除く): 9677301

約数列:

[1, 3, 17, 41, 51, 123, 697, 2091, 10369, 31107, 176273, 425129, 528819, 1275387, 7227193, 21681579]

約数ペア:

[(1, 21681579), (3, 7227193), (17, 1275387), (41, 528819), (51, 425129), (123, 176273), (697, 31107), (2091, 10369)]