137385

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 24

約数和(自身を含む): 247104

約数和(自身を除く): 109719

約数列:

[1, 3, 5, 9, 15, 43, 45, 71, 129, 213, 215, 355, 387, 639, 645, 1065, 1935, 3053, 3195, 9159, 15265, 27477, 45795, 137385]

約数ペア:

[(1, 137385), (3, 45795), (5, 27477), (9, 15265), (15, 9159), (43, 3195), (45, 3053), (71, 1935), (129, 1065), (213, 645), (215, 639), (355, 387)]