18720882

素因数分解:

$2^1\times 3^4\times {\mathrm{115561}}^1$

素因数の和:115575

約数の個数: 20

約数和(自身を含む): 41949006

約数和(自身を除く): 23228124

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 115561, 231122, 346683, 693366, 1040049, 2080098, 3120147, 6240294, 9360441, 18720882]

約数ペア:

[(1, 18720882), (2, 9360441), (3, 6240294), (6, 3120147), (9, 2080098), (18, 1040049), (27, 693366), (54, 346683), (81, 231122), (162, 115561)]