20640726

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{60353}}^1$

素因数の和:60380

約数の個数: 24

約数和(自身を含む): 47076120

約数和(自身を除く): 26435394

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 60353, 120706, 181059, 362118, 543177, 1086354, 1146707, 2293414, 3440121, 6880242, 10320363, 20640726]

約数ペア:

[(1, 20640726), (2, 10320363), (3, 6880242), (6, 3440121), (9, 2293414), (18, 1146707), (19, 1086354), (38, 543177), (57, 362118), (114, 181059), (171, 120706), (342, 60353)]