21493065

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130261}}^1$

素因数の和:130280

約数の個数: 16

約数和(自身を含む): 37515456

約数和(自身を除く): 16022391

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 130261, 390783, 651305, 1432871, 1953915, 4298613, 7164355, 21493065]

約数ペア:

[(1, 21493065), (3, 7164355), (5, 4298613), (11, 1953915), (15, 1432871), (33, 651305), (55, 390783), (165, 130261)]