17919945

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20959}}^1$

素因数の和:20989

約数の個数: 24

約数和(自身を含む): 32697600

約数和(自身を除く): 14777655

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 20959, 62877, 104795, 188631, 314385, 398221, 943155, 1194663, 1991105, 3583989, 5973315, 17919945]

約数ペア:

[(1, 17919945), (3, 5973315), (5, 3583989), (9, 1991105), (15, 1194663), (19, 943155), (45, 398221), (57, 314385), (95, 188631), (171, 104795), (285, 62877), (855, 20959)]