213229225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{70489}}^1$

素因数の和:70521

約数の個数: 18

約数和(自身を含む): 290630270

約数和(自身を除く): 77401045

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 70489, 352445, 775379, 1762225, 3876895, 8529169, 19384475, 42645845, 213229225]

約数ペア:

[(1, 213229225), (5, 42645845), (11, 19384475), (25, 8529169), (55, 3876895), (121, 1762225), (275, 775379), (605, 352445), (3025, 70489)]