18912843

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{233}}^1\times {\mathrm{311}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 28473120

約数和(自身を除く): 9560277

約数列:

[1, 3, 9, 29, 87, 233, 261, 311, 699, 933, 2097, 2799, 6757, 9019, 20271, 27057, 60813, 72463, 81171, 217389, 652167, 2101427, 6304281, 18912843]

約数ペア:

[(1, 18912843), (3, 6304281), (9, 2101427), (29, 652167), (87, 217389), (233, 81171), (261, 72463), (311, 60813), (699, 27057), (933, 20271), (2097, 9019), (2799, 6757)]