21921744

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 65724960

約数和(自身を除く): 43803216

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 43, 48, 52, 57, 76, 78, 86, 104, 114, 129, 152, 156, 172, 208, 228, 247, 258, 304, 312, 344, 456, 494, 516, 559, 624, 688, 741, 817, 912, 988, 1032, 1118, 1482, 1634, 1677, 1849, 1976, 2064, 2236, 2451, 2964, 3268, 3354, 3698, 3952, 4472, 4902, 5547, 5928, 6536, 6708, 7396, 8944, 9804, 10621, 11094, 11856, 13072, 13416, 14792, 19608, 21242, 22188, 24037, 26832, 29584, 31863, 35131, 39216, 42484, 44376, 48074, 63726, 70262, 72111, 84968, 88752, 96148, 105393, 127452, 140524, 144222, 169936, 192296, 210786, 254904, 281048, 288444, 384592, 421572, 456703, 509808, 562096, 576888, 843144, 913406, 1153776, 1370109, 1686288, 1826812, 2740218, 3653624, 5480436, 7307248, 10960872, 21921744]

約数ペア:

[(1, 21921744), (2, 10960872), (3, 7307248), (4, 5480436), (6, 3653624), (8, 2740218), (12, 1826812), (13, 1686288), (16, 1370109), (19, 1153776), (24, 913406), (26, 843144), (38, 576888), (39, 562096), (43, 509808), (48, 456703), (52, 421572), (57, 384592), (76, 288444), (78, 281048), (86, 254904), (104, 210786), (114, 192296), (129, 169936), (152, 144222), (156, 140524), (172, 127452), (208, 105393), (228, 96148), (247, 88752), (258, 84968), (304, 72111), (312, 70262), (344, 63726), (456, 48074), (494, 44376), (516, 42484), (559, 39216), (624, 35131), (688, 31863), (741, 29584), (817, 26832), (912, 24037), (988, 22188), (1032, 21242), (1118, 19608), (1482, 14792), (1634, 13416), (1677, 13072), (1849, 11856), (1976, 11094), (2064, 10621), (2236, 9804), (2451, 8944), (2964, 7396), (3268, 6708), (3354, 6536), (3698, 5928), (3952, 5547), (4472, 4902)]