18647892

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 50232000

約数和(自身を除く): 31584108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 137, 171, 199, 228, 274, 342, 398, 411, 548, 597, 684, 796, 822, 1194, 1233, 1644, 1791, 2388, 2466, 2603, 3582, 3781, 4932, 5206, 7164, 7562, 7809, 10412, 11343, 15124, 15618, 22686, 23427, 27263, 31236, 34029, 45372, 46854, 54526, 68058, 81789, 93708, 109052, 136116, 163578, 245367, 327156, 490734, 517997, 981468, 1035994, 1553991, 2071988, 3107982, 4661973, 6215964, 9323946, 18647892]

約数ペア:

[(1, 18647892), (2, 9323946), (3, 6215964), (4, 4661973), (6, 3107982), (9, 2071988), (12, 1553991), (18, 1035994), (19, 981468), (36, 517997), (38, 490734), (57, 327156), (76, 245367), (114, 163578), (137, 136116), (171, 109052), (199, 93708), (228, 81789), (274, 68058), (342, 54526), (398, 46854), (411, 45372), (548, 34029), (597, 31236), (684, 27263), (796, 23427), (822, 22686), (1194, 15618), (1233, 15124), (1644, 11343), (1791, 10412), (2388, 7809), (2466, 7562), (2603, 7164), (3582, 5206), (3781, 4932)]