18221535

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23819}}^1$

素因数の和:23847

約数の個数: 24

約数和(自身を含む): 33443280

約数和(自身を除く): 15221745

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 23819, 71457, 119095, 214371, 357285, 404923, 1071855, 1214769, 2024615, 3644307, 6073845, 18221535]

約数ペア:

[(1, 18221535), (3, 6073845), (5, 3644307), (9, 2024615), (15, 1214769), (17, 1071855), (45, 404923), (51, 357285), (85, 214371), (153, 119095), (255, 71457), (765, 23819)]