18021915

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8521}}^1$

素因数の和:8579

約数の個数: 24

約数和(自身を含む): 31906368

約数和(自身を除く): 13884453

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 8521, 25563, 42605, 76689, 127815, 383445, 400487, 1201461, 2002435, 3604383, 6007305, 18021915]

約数ペア:

[(1, 18021915), (3, 6007305), (5, 3604383), (9, 2002435), (15, 1201461), (45, 400487), (47, 383445), (141, 127815), (235, 76689), (423, 42605), (705, 25563), (2115, 8521)]