16778664

素因数分解:

$2^3\times 3^7\times 7^1\times {\mathrm{137}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 54316800

約数和(自身を除く): 37538136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 137, 162, 168, 189, 216, 243, 252, 274, 324, 378, 411, 486, 504, 548, 567, 648, 729, 756, 822, 959, 972, 1096, 1134, 1233, 1458, 1512, 1644, 1701, 1918, 1944, 2187, 2268, 2466, 2877, 2916, 3288, 3402, 3699, 3836, 4374, 4536, 4932, 5103, 5754, 5832, 6804, 7398, 7672, 8631, 8748, 9864, 10206, 11097, 11508, 13608, 14796, 15309, 17262, 17496, 20412, 22194, 23016, 25893, 29592, 30618, 33291, 34524, 40824, 44388, 51786, 61236, 66582, 69048, 77679, 88776, 99873, 103572, 122472, 133164, 155358, 199746, 207144, 233037, 266328, 299619, 310716, 399492, 466074, 599238, 621432, 699111, 798984, 932148, 1198476, 1398222, 1864296, 2097333, 2396952, 2796444, 4194666, 5592888, 8389332, 16778664]

約数ペア:

[(1, 16778664), (2, 8389332), (3, 5592888), (4, 4194666), (6, 2796444), (7, 2396952), (8, 2097333), (9, 1864296), (12, 1398222), (14, 1198476), (18, 932148), (21, 798984), (24, 699111), (27, 621432), (28, 599238), (36, 466074), (42, 399492), (54, 310716), (56, 299619), (63, 266328), (72, 233037), (81, 207144), (84, 199746), (108, 155358), (126, 133164), (137, 122472), (162, 103572), (168, 99873), (189, 88776), (216, 77679), (243, 69048), (252, 66582), (274, 61236), (324, 51786), (378, 44388), (411, 40824), (486, 34524), (504, 33291), (548, 30618), (567, 29592), (648, 25893), (729, 23016), (756, 22194), (822, 20412), (959, 17496), (972, 17262), (1096, 15309), (1134, 14796), (1233, 13608), (1458, 11508), (1512, 11097), (1644, 10206), (1701, 9864), (1918, 8748), (1944, 8631), (2187, 7672), (2268, 7398), (2466, 6804), (2877, 5832), (2916, 5754), (3288, 5103), (3402, 4932), (3699, 4536), (3836, 4374)]