51797781

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 91062400

約数和(自身を除く): 39264619

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 109, 133, 171, 327, 397, 399, 763, 981, 1191, 1197, 2071, 2289, 2779, 3573, 6213, 6867, 7543, 8337, 14497, 18639, 22629, 25011, 43273, 43491, 52801, 67887, 129819, 130473, 158403, 302911, 389457, 475209, 822187, 908733, 2466561, 2726199, 5755309, 7399683, 17265927, 51797781]

約数ペア:

[(1, 51797781), (3, 17265927), (7, 7399683), (9, 5755309), (19, 2726199), (21, 2466561), (57, 908733), (63, 822187), (109, 475209), (133, 389457), (171, 302911), (327, 158403), (397, 130473), (399, 129819), (763, 67887), (981, 52801), (1191, 43491), (1197, 43273), (2071, 25011), (2289, 22629), (2779, 18639), (3573, 14497), (6213, 8337), (6867, 7543)]