21724509

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3517}}^1$

素因数の和:3620

約数の個数: 16

約数和(自身を含む): 30395520

約数和(自身を除く): 8671011

約数列:

[1, 3, 29, 71, 87, 213, 2059, 3517, 6177, 10551, 101993, 249707, 305979, 749121, 7241503, 21724509]

約数ペア:

[(1, 21724509), (3, 7241503), (29, 749121), (71, 305979), (87, 249707), (213, 101993), (2059, 10551), (3517, 6177)]