21041436

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 57702400

約数和(自身を除く): 36660964

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 31, 38, 39, 52, 57, 62, 76, 78, 93, 114, 124, 156, 186, 228, 229, 247, 372, 403, 458, 494, 589, 687, 741, 806, 916, 988, 1178, 1209, 1374, 1482, 1612, 1767, 2356, 2418, 2748, 2964, 2977, 3534, 4351, 4836, 5954, 7068, 7099, 7657, 8702, 8931, 11908, 13053, 14198, 15314, 17404, 17862, 21297, 22971, 26106, 28396, 30628, 35724, 42594, 45942, 52212, 56563, 85188, 91884, 92287, 113126, 134881, 169689, 184574, 226252, 269762, 276861, 339378, 369148, 404643, 539524, 553722, 678756, 809286, 1107444, 1618572, 1753453, 3506906, 5260359, 7013812, 10520718, 21041436]

約数ペア:

[(1, 21041436), (2, 10520718), (3, 7013812), (4, 5260359), (6, 3506906), (12, 1753453), (13, 1618572), (19, 1107444), (26, 809286), (31, 678756), (38, 553722), (39, 539524), (52, 404643), (57, 369148), (62, 339378), (76, 276861), (78, 269762), (93, 226252), (114, 184574), (124, 169689), (156, 134881), (186, 113126), (228, 92287), (229, 91884), (247, 85188), (372, 56563), (403, 52212), (458, 45942), (494, 42594), (589, 35724), (687, 30628), (741, 28396), (806, 26106), (916, 22971), (988, 21297), (1178, 17862), (1209, 17404), (1374, 15314), (1482, 14198), (1612, 13053), (1767, 11908), (2356, 8931), (2418, 8702), (2748, 7657), (2964, 7099), (2977, 7068), (3534, 5954), (4351, 4836)]