51781269

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 76446720

約数和(自身を除く): 24665451

約数列:

[1, 3, 17, 29, 51, 87, 157, 223, 471, 493, 669, 1479, 2669, 3791, 4553, 6467, 8007, 11373, 13659, 19401, 35011, 77401, 105033, 109939, 232203, 329817, 595187, 1015319, 1785561, 3045957, 17260423, 51781269]

約数ペア:

[(1, 51781269), (3, 17260423), (17, 3045957), (29, 1785561), (51, 1015319), (87, 595187), (157, 329817), (223, 232203), (471, 109939), (493, 105033), (669, 77401), (1479, 35011), (2669, 19401), (3791, 13659), (4553, 11373), (6467, 8007)]