18988065

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{24821}}^1$

素因数の和:24849

約数の個数: 24

約数和(自身を含む): 34850088

約数和(自身を除く): 15862023

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 24821, 74463, 124105, 223389, 372315, 421957, 1116945, 1265871, 2109785, 3797613, 6329355, 18988065]

約数ペア:

[(1, 18988065), (3, 6329355), (5, 3797613), (9, 2109785), (15, 1265871), (17, 1116945), (45, 421957), (51, 372315), (85, 223389), (153, 124105), (255, 74463), (765, 24821)]