213920289

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{3371}}^1$

素因数の和:4029

約数の個数: 24

約数和(自身を含む): 337712544

約数和(自身を除く): 123792255

約数列:

[1, 3, 9, 11, 33, 99, 641, 1923, 3371, 5769, 7051, 10113, 21153, 30339, 37081, 63459, 111243, 333729, 2160811, 6482433, 19447299, 23768921, 71306763, 213920289]

約数ペア:

[(1, 213920289), (3, 71306763), (9, 23768921), (11, 19447299), (33, 6482433), (99, 2160811), (641, 333729), (1923, 111243), (3371, 63459), (5769, 37081), (7051, 30339), (10113, 21153)]