19605321

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12739}}^1$

素因数の和:12770

約数の個数: 20

約数和(自身を含む): 30830800

約数和(自身を除く): 11225479

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12739, 38217, 114651, 242041, 343953, 726123, 1031859, 2178369, 6535107, 19605321]

約数ペア:

[(1, 19605321), (3, 6535107), (9, 2178369), (19, 1031859), (27, 726123), (57, 343953), (81, 242041), (171, 114651), (513, 38217), (1539, 12739)]