51578037

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 92921400

約数和(自身を除く): 41343363

約数列:

[1, 3, 7, 9, 21, 29, 37, 49, 63, 87, 109, 111, 147, 203, 259, 261, 327, 333, 441, 609, 763, 777, 981, 1073, 1421, 1813, 1827, 2289, 2331, 3161, 3219, 4033, 4263, 5341, 5439, 6867, 7511, 9483, 9657, 12099, 12789, 16023, 16317, 22127, 22533, 28231, 28449, 36297, 48069, 52577, 66381, 67599, 84693, 116957, 154889, 157731, 197617, 199143, 254079, 350871, 464667, 473193, 592851, 818699, 1052613, 1394001, 1778553, 2456097, 5730893, 7368291, 17192679, 51578037]

約数ペア:

[(1, 51578037), (3, 17192679), (7, 7368291), (9, 5730893), (21, 2456097), (29, 1778553), (37, 1394001), (49, 1052613), (63, 818699), (87, 592851), (109, 473193), (111, 464667), (147, 350871), (203, 254079), (259, 199143), (261, 197617), (327, 157731), (333, 154889), (441, 116957), (609, 84693), (763, 67599), (777, 66381), (981, 52577), (1073, 48069), (1421, 36297), (1813, 28449), (1827, 28231), (2289, 22533), (2331, 22127), (3161, 16317), (3219, 16023), (4033, 12789), (4263, 12099), (5341, 9657), (5439, 9483), (6867, 7511)]