21025872

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:450

約数の個数: 160

約数和(自身を含む): 73209600

約数和(自身を除く): 52183728

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 34, 36, 42, 48, 51, 54, 56, 63, 68, 72, 84, 102, 108, 112, 119, 126, 136, 144, 153, 168, 189, 204, 216, 238, 252, 272, 306, 336, 357, 378, 408, 409, 432, 459, 476, 504, 612, 714, 756, 816, 818, 918, 952, 1008, 1071, 1224, 1227, 1428, 1512, 1636, 1836, 1904, 2142, 2448, 2454, 2856, 2863, 3024, 3213, 3272, 3672, 3681, 4284, 4908, 5712, 5726, 6426, 6544, 6953, 7344, 7362, 8568, 8589, 9816, 11043, 11452, 12852, 13906, 14724, 17136, 17178, 19632, 20859, 22086, 22904, 25704, 25767, 27812, 29448, 34356, 41718, 44172, 45808, 48671, 51408, 51534, 55624, 58896, 62577, 68712, 77301, 83436, 88344, 97342, 103068, 111248, 125154, 137424, 146013, 154602, 166872, 176688, 187731, 194684, 206136, 250308, 292026, 309204, 333744, 375462, 389368, 412272, 438039, 500616, 584052, 618408, 750924, 778736, 876078, 1001232, 1168104, 1236816, 1314117, 1501848, 1752156, 2336208, 2628234, 3003696, 3504312, 5256468, 7008624, 10512936, 21025872]

約数ペア:

[(1, 21025872), (2, 10512936), (3, 7008624), (4, 5256468), (6, 3504312), (7, 3003696), (8, 2628234), (9, 2336208), (12, 1752156), (14, 1501848), (16, 1314117), (17, 1236816), (18, 1168104), (21, 1001232), (24, 876078), (27, 778736), (28, 750924), (34, 618408), (36, 584052), (42, 500616), (48, 438039), (51, 412272), (54, 389368), (56, 375462), (63, 333744), (68, 309204), (72, 292026), (84, 250308), (102, 206136), (108, 194684), (112, 187731), (119, 176688), (126, 166872), (136, 154602), (144, 146013), (153, 137424), (168, 125154), (189, 111248), (204, 103068), (216, 97342), (238, 88344), (252, 83436), (272, 77301), (306, 68712), (336, 62577), (357, 58896), (378, 55624), (408, 51534), (409, 51408), (432, 48671), (459, 45808), (476, 44172), (504, 41718), (612, 34356), (714, 29448), (756, 27812), (816, 25767), (818, 25704), (918, 22904), (952, 22086), (1008, 20859), (1071, 19632), (1224, 17178), (1227, 17136), (1428, 14724), (1512, 13906), (1636, 12852), (1836, 11452), (1904, 11043), (2142, 9816), (2448, 8589), (2454, 8568), (2856, 7362), (2863, 7344), (3024, 6953), (3213, 6544), (3272, 6426), (3672, 5726), (3681, 5712), (4284, 4908)]