125979147

素因数分解:

$3^2\times 7^2\times {\mathrm{285667}}^1$

素因数の和:285687

約数の個数: 18

約数和(自身を含む): 211679988

約数和(自身を除く): 85700841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 285667, 857001, 1999669, 2571003, 5999007, 13997683, 17997021, 41993049, 125979147]

約数ペア:

[(1, 125979147), (3, 41993049), (7, 17997021), (9, 13997683), (21, 5999007), (49, 2571003), (63, 1999669), (147, 857001), (441, 285667)]