2205693

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 3680768

約数和(自身を除く): 1475075

約数列:

[1, 3, 7, 9, 21, 63, 157, 223, 471, 669, 1099, 1413, 1561, 2007, 3297, 4683, 9891, 14049, 35011, 105033, 245077, 315099, 735231, 2205693]

約数ペア:

[(1, 2205693), (3, 735231), (7, 315099), (9, 245077), (21, 105033), (63, 35011), (157, 14049), (223, 9891), (471, 4683), (669, 3297), (1099, 2007), (1413, 1561)]