278490961

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{283}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 345344000

約数和(自身を除く): 66853039

約数列:

[1, 7, 19, 49, 133, 151, 283, 343, 931, 1057, 1981, 2869, 5377, 6517, 7399, 13867, 20083, 37639, 42733, 51793, 97069, 140581, 263473, 299131, 811927, 984067, 1844311, 2093917, 5683489, 14657419, 39784423, 278490961]

約数ペア:

[(1, 278490961), (7, 39784423), (19, 14657419), (49, 5683489), (133, 2093917), (151, 1844311), (283, 984067), (343, 811927), (931, 299131), (1057, 263473), (1981, 140581), (2869, 97069), (5377, 51793), (6517, 42733), (7399, 37639), (13867, 20083)]