217526478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3967}}^1$

素因数の和:4041

約数の個数: 64

約数和(自身を含む): 506634240

約数和(自身を除く): 289107762

約数列:

[1, 2, 3, 6, 13, 19, 26, 37, 38, 39, 57, 74, 78, 111, 114, 222, 247, 481, 494, 703, 741, 962, 1406, 1443, 1482, 2109, 2886, 3967, 4218, 7934, 9139, 11901, 18278, 23802, 27417, 51571, 54834, 75373, 103142, 146779, 150746, 154713, 226119, 293558, 309426, 440337, 452238, 880674, 979849, 1908127, 1959698, 2788801, 2939547, 3816254, 5577602, 5724381, 5879094, 8366403, 11448762, 16732806, 36254413, 72508826, 108763239, 217526478]

約数ペア:

[(1, 217526478), (2, 108763239), (3, 72508826), (6, 36254413), (13, 16732806), (19, 11448762), (26, 8366403), (37, 5879094), (38, 5724381), (39, 5577602), (57, 3816254), (74, 2939547), (78, 2788801), (111, 1959698), (114, 1908127), (222, 979849), (247, 880674), (481, 452238), (494, 440337), (703, 309426), (741, 293558), (962, 226119), (1406, 154713), (1443, 150746), (1482, 146779), (2109, 103142), (2886, 75373), (3967, 54834), (4218, 51571), (7934, 27417), (9139, 23802), (11901, 18278)]