21881244

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 68947200

約数和(自身を除く): 47065956

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 33, 34, 42, 44, 49, 51, 66, 68, 77, 84, 98, 102, 119, 132, 147, 154, 187, 196, 199, 204, 231, 238, 294, 308, 357, 374, 398, 462, 476, 539, 561, 588, 597, 714, 748, 796, 833, 924, 1078, 1122, 1194, 1309, 1393, 1428, 1617, 1666, 2156, 2189, 2244, 2388, 2499, 2618, 2786, 3234, 3332, 3383, 3927, 4179, 4378, 4998, 5236, 5572, 6468, 6567, 6766, 7854, 8358, 8756, 9163, 9751, 9996, 10149, 13134, 13532, 15323, 15708, 16716, 18326, 19502, 20298, 23681, 26268, 27489, 29253, 30646, 36652, 37213, 39004, 40596, 45969, 47362, 54978, 58506, 61292, 71043, 74426, 91938, 94724, 107261, 109956, 111639, 117012, 142086, 148852, 165767, 183876, 214522, 223278, 260491, 284172, 321783, 331534, 429044, 446556, 497301, 520982, 643566, 663068, 781473, 994602, 1041964, 1287132, 1562946, 1823437, 1989204, 3125892, 3646874, 5470311, 7293748, 10940622, 21881244]

約数ペア:

[(1, 21881244), (2, 10940622), (3, 7293748), (4, 5470311), (6, 3646874), (7, 3125892), (11, 1989204), (12, 1823437), (14, 1562946), (17, 1287132), (21, 1041964), (22, 994602), (28, 781473), (33, 663068), (34, 643566), (42, 520982), (44, 497301), (49, 446556), (51, 429044), (66, 331534), (68, 321783), (77, 284172), (84, 260491), (98, 223278), (102, 214522), (119, 183876), (132, 165767), (147, 148852), (154, 142086), (187, 117012), (196, 111639), (199, 109956), (204, 107261), (231, 94724), (238, 91938), (294, 74426), (308, 71043), (357, 61292), (374, 58506), (398, 54978), (462, 47362), (476, 45969), (539, 40596), (561, 39004), (588, 37213), (597, 36652), (714, 30646), (748, 29253), (796, 27489), (833, 26268), (924, 23681), (1078, 20298), (1122, 19502), (1194, 18326), (1309, 16716), (1393, 15708), (1428, 15323), (1617, 13532), (1666, 13134), (2156, 10149), (2189, 9996), (2244, 9751), (2388, 9163), (2499, 8756), (2618, 8358), (2786, 7854), (3234, 6766), (3332, 6567), (3383, 6468), (3927, 5572), (4179, 5236), (4378, 4998)]