218219805

素因数分解:

$3^3\times 5^1\times {\mathrm{1616443}}^1$

素因数の和:1616457

約数の個数: 16

約数和(自身を含む): 387946560

約数和(自身を除く): 169726755

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1616443, 4849329, 8082215, 14547987, 24246645, 43643961, 72739935, 218219805]

約数ペア:

[(1, 218219805), (3, 72739935), (5, 43643961), (9, 24246645), (15, 14547987), (27, 8082215), (45, 4849329), (135, 1616443)]