1280491857

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{47221}}^1$

素因数の和:47381

約数の個数: 24

約数和(自身を含む): 1944790848

約数和(自身を除く): 664298991

約数列:

[1, 3, 9, 23, 69, 131, 207, 393, 1179, 3013, 9039, 27117, 47221, 141663, 424989, 1086083, 3258249, 6185951, 9774747, 18557853, 55673559, 142276873, 426830619, 1280491857]

約数ペア:

[(1, 1280491857), (3, 426830619), (9, 142276873), (23, 55673559), (69, 18557853), (131, 9774747), (207, 6185951), (393, 3258249), (1179, 1086083), (3013, 424989), (9039, 141663), (27117, 47221)]