21758724

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2447}}^1$

素因数の和:2489

約数の個数: 72

約数和(自身を含む): 62375040

約数和(自身を除く): 40616316

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2447, 2964, 4446, 4894, 7341, 8892, 9788, 14682, 22023, 29364, 31811, 44046, 46493, 63622, 88092, 92986, 95433, 127244, 139479, 185972, 190866, 278958, 286299, 381732, 418437, 557916, 572598, 604409, 836874, 1145196, 1208818, 1673748, 1813227, 2417636, 3626454, 5439681, 7252908, 10879362, 21758724]

約数ペア:

[(1, 21758724), (2, 10879362), (3, 7252908), (4, 5439681), (6, 3626454), (9, 2417636), (12, 1813227), (13, 1673748), (18, 1208818), (19, 1145196), (26, 836874), (36, 604409), (38, 572598), (39, 557916), (52, 418437), (57, 381732), (76, 286299), (78, 278958), (114, 190866), (117, 185972), (156, 139479), (171, 127244), (228, 95433), (234, 92986), (247, 88092), (342, 63622), (468, 46493), (494, 44046), (684, 31811), (741, 29364), (988, 22023), (1482, 14682), (2223, 9788), (2447, 8892), (2964, 7341), (4446, 4894)]