18897405

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 31173120

約数和(自身を除く): 12275715

約数列:

[1, 3, 5, 15, 59, 131, 163, 177, 295, 393, 489, 655, 815, 885, 1965, 2445, 7729, 9617, 21353, 23187, 28851, 38645, 48085, 64059, 106765, 115935, 144255, 320295, 1259827, 3779481, 6299135, 18897405]

約数ペア:

[(1, 18897405), (3, 6299135), (5, 3779481), (15, 1259827), (59, 320295), (131, 144255), (163, 115935), (177, 106765), (295, 64059), (393, 48085), (489, 38645), (655, 28851), (815, 23187), (885, 21353), (1965, 9617), (2445, 7729)]