21930561

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47779}}^1$

素因数の和:47805

約数の個数: 16

約数和(自身を含む): 34401600

約数和(自身を除く): 12471039

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47779, 143337, 430011, 812243, 1290033, 2436729, 7310187, 21930561]

約数ペア:

[(1, 21930561), (3, 7310187), (9, 2436729), (17, 1290033), (27, 812243), (51, 430011), (153, 143337), (459, 47779)]