239306781

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1\times {\mathrm{601}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 372026368

約数和(自身を除く): 132719587

約数列:

[1, 3, 7, 21, 67, 201, 283, 469, 601, 849, 1407, 1803, 1981, 4207, 5943, 12621, 18961, 40267, 56883, 120801, 132727, 170083, 281869, 398181, 510249, 845607, 1190581, 3571743, 11395561, 34186683, 79768927, 239306781]

約数ペア:

[(1, 239306781), (3, 79768927), (7, 34186683), (21, 11395561), (67, 3571743), (201, 1190581), (283, 845607), (469, 510249), (601, 398181), (849, 281869), (1407, 170083), (1803, 132727), (1981, 120801), (4207, 56883), (5943, 40267), (12621, 18961)]