667765539

素因数分解:

$3^4\times 7^1\times {\mathrm{1177717}}^1$

素因数の和:1177736

約数の個数: 20

約数和(自身を含む): 1140031024

約数和(自身を除く): 472265485

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1177717, 3533151, 8244019, 10599453, 24732057, 31798359, 74196171, 95395077, 222588513, 667765539]

約数ペア:

[(1, 667765539), (3, 222588513), (7, 95395077), (9, 74196171), (21, 31798359), (27, 24732057), (63, 10599453), (81, 8244019), (189, 3533151), (567, 1177717)]