20651242178

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{35771}}^1$

素因数の和:35967

約数の個数: 48

約数和(自身を含む): 37142496864

約数和(自身を除く): 16491254686

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 137, 274, 301, 602, 959, 1918, 2107, 4214, 5891, 6713, 11782, 13426, 35771, 41237, 71542, 82474, 250397, 288659, 500794, 577318, 1538153, 1752779, 3076306, 3505558, 4900627, 9801254, 10767071, 21534142, 34304389, 68608778, 75369497, 150738994, 210726961, 240130723, 421453922, 480261446, 1475088727, 2950177454, 10325621089, 20651242178]

約数ペア:

[(1, 20651242178), (2, 10325621089), (7, 2950177454), (14, 1475088727), (43, 480261446), (49, 421453922), (86, 240130723), (98, 210726961), (137, 150738994), (274, 75369497), (301, 68608778), (602, 34304389), (959, 21534142), (1918, 10767071), (2107, 9801254), (4214, 4900627), (5891, 3505558), (6713, 3076306), (11782, 1752779), (13426, 1538153), (35771, 577318), (41237, 500794), (71542, 288659), (82474, 250397)]