20123997138

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1\times {\mathrm{9851}}^1$

素因数の和:10420

約数の個数: 96

約数和(自身を含む): 51541880832

約数和(自身を除く): 31417883694

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 523, 558, 651, 1046, 1302, 1569, 1953, 3138, 3661, 3906, 4707, 7322, 9414, 9851, 10983, 16213, 19702, 21966, 29553, 32426, 32949, 48639, 59106, 65898, 68957, 88659, 97278, 113491, 137914, 145917, 177318, 206871, 226982, 291834, 305381, 340473, 413742, 610762, 620613, 680946, 916143, 1021419, 1241226, 1832286, 2042838, 2137667, 2748429, 4275334, 5152073, 5496858, 6413001, 10304146, 12826002, 15456219, 19239003, 30912438, 36064511, 38478006, 46368657, 72129022, 92737314, 108193533, 159714263, 216387066, 319428526, 324580599, 479142789, 649161198, 958285578, 1117999841, 1437428367, 2235999682, 2874856734, 3353999523, 6707999046, 10061998569, 20123997138]

約数ペア:

[(1, 20123997138), (2, 10061998569), (3, 6707999046), (6, 3353999523), (7, 2874856734), (9, 2235999682), (14, 1437428367), (18, 1117999841), (21, 958285578), (31, 649161198), (42, 479142789), (62, 324580599), (63, 319428526), (93, 216387066), (126, 159714263), (186, 108193533), (217, 92737314), (279, 72129022), (434, 46368657), (523, 38478006), (558, 36064511), (651, 30912438), (1046, 19239003), (1302, 15456219), (1569, 12826002), (1953, 10304146), (3138, 6413001), (3661, 5496858), (3906, 5152073), (4707, 4275334), (7322, 2748429), (9414, 2137667), (9851, 2042838), (10983, 1832286), (16213, 1241226), (19702, 1021419), (21966, 916143), (29553, 680946), (32426, 620613), (32949, 610762), (48639, 413742), (59106, 340473), (65898, 305381), (68957, 291834), (88659, 226982), (97278, 206871), (113491, 177318), (137914, 145917)]