213255

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{677}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 423072

約数和(自身を除く): 209817

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 677, 2031, 3385, 4739, 6093, 10155, 14217, 23695, 30465, 42651, 71085, 213255]

約数ペア:

[(1, 213255), (3, 71085), (5, 42651), (7, 30465), (9, 23695), (15, 14217), (21, 10155), (35, 6093), (45, 4739), (63, 3385), (105, 2031), (315, 677)]