21720192

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:278

約数の個数: 128

約数和(自身を含む): 65688000

約数和(自身を除く): 43967808

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 32, 38, 39, 48, 52, 57, 64, 76, 78, 96, 104, 114, 128, 152, 156, 192, 208, 228, 229, 247, 304, 312, 384, 416, 456, 458, 494, 608, 624, 687, 741, 832, 912, 916, 988, 1216, 1248, 1374, 1482, 1664, 1824, 1832, 1976, 2432, 2496, 2748, 2964, 2977, 3648, 3664, 3952, 4351, 4992, 5496, 5928, 5954, 7296, 7328, 7904, 8702, 8931, 10992, 11856, 11908, 13053, 14656, 15808, 17404, 17862, 21984, 23712, 23816, 26106, 29312, 31616, 34808, 35724, 43968, 47424, 47632, 52212, 56563, 69616, 71448, 87936, 94848, 95264, 104424, 113126, 139232, 142896, 169689, 190528, 208848, 226252, 278464, 285792, 339378, 381056, 417696, 452504, 556928, 571584, 678756, 835392, 905008, 1143168, 1357512, 1670784, 1810016, 2715024, 3620032, 5430048, 7240064, 10860096, 21720192]

約数ペア:

[(1, 21720192), (2, 10860096), (3, 7240064), (4, 5430048), (6, 3620032), (8, 2715024), (12, 1810016), (13, 1670784), (16, 1357512), (19, 1143168), (24, 905008), (26, 835392), (32, 678756), (38, 571584), (39, 556928), (48, 452504), (52, 417696), (57, 381056), (64, 339378), (76, 285792), (78, 278464), (96, 226252), (104, 208848), (114, 190528), (128, 169689), (152, 142896), (156, 139232), (192, 113126), (208, 104424), (228, 95264), (229, 94848), (247, 87936), (304, 71448), (312, 69616), (384, 56563), (416, 52212), (456, 47632), (458, 47424), (494, 43968), (608, 35724), (624, 34808), (687, 31616), (741, 29312), (832, 26106), (912, 23816), (916, 23712), (988, 21984), (1216, 17862), (1248, 17404), (1374, 15808), (1482, 14656), (1664, 13053), (1824, 11908), (1832, 11856), (1976, 10992), (2432, 8931), (2496, 8702), (2748, 7904), (2964, 7328), (2977, 7296), (3648, 5954), (3664, 5928), (3952, 5496), (4351, 4992)]