405189

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:401

約数の個数: 16

約数和(自身を含む): 616000

約数和(自身を除く): 210811

約数列:

[1, 3, 9, 27, 43, 129, 349, 387, 1047, 1161, 3141, 9423, 15007, 45021, 135063, 405189]

約数ペア:

[(1, 405189), (3, 135063), (9, 45021), (27, 15007), (43, 9423), (129, 3141), (349, 1161), (387, 1047)]