74687781

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 116807680

約数和(自身を除く): 42119899

約数列:

[1, 3, 7, 21, 67, 109, 201, 327, 469, 487, 763, 1407, 1461, 2289, 3409, 7303, 10227, 21909, 32629, 51121, 53083, 97887, 153363, 159249, 228403, 371581, 685209, 1114743, 3556561, 10669683, 24895927, 74687781]

約数ペア:

[(1, 74687781), (3, 24895927), (7, 10669683), (21, 3556561), (67, 1114743), (109, 685209), (201, 371581), (327, 228403), (469, 159249), (487, 153363), (763, 97887), (1407, 53083), (1461, 51121), (2289, 32629), (3409, 21909), (7303, 10227)]