21140085

素因数分解:

$3^1\times 5^1\times {\mathrm{877}}^1\times {\mathrm{1607}}^1$

素因数の和:2492

約数の個数: 16

約数和(自身を含む): 33883776

約数和(自身を除く): 12743691

約数列:

[1, 3, 5, 15, 877, 1607, 2631, 4385, 4821, 8035, 13155, 24105, 1409339, 4228017, 7046695, 21140085]

約数ペア:

[(1, 21140085), (3, 7046695), (5, 4228017), (15, 1409339), (877, 24105), (1607, 13155), (2631, 8035), (4385, 4821)]