21242088

素因数分解:

$2^3\times 3^5\times 7^2\times {\mathrm{223}}^1$

素因数の和:258

約数の個数: 144

約数和(自身を含む): 69713280

約数和(自身を除く): 48471192

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 81, 84, 98, 108, 126, 147, 162, 168, 189, 196, 216, 223, 243, 252, 294, 324, 378, 392, 441, 446, 486, 504, 567, 588, 648, 669, 756, 882, 892, 972, 1134, 1176, 1323, 1338, 1512, 1561, 1701, 1764, 1784, 1944, 2007, 2268, 2646, 2676, 3122, 3402, 3528, 3969, 4014, 4536, 4683, 5292, 5352, 6021, 6244, 6804, 7938, 8028, 9366, 10584, 10927, 11907, 12042, 12488, 13608, 14049, 15876, 16056, 18063, 18732, 21854, 23814, 24084, 28098, 31752, 32781, 36126, 37464, 42147, 43708, 47628, 48168, 54189, 56196, 65562, 72252, 84294, 87416, 95256, 98343, 108378, 112392, 126441, 131124, 144504, 168588, 196686, 216756, 252882, 262248, 295029, 337176, 379323, 393372, 433512, 505764, 590058, 758646, 786744, 885087, 1011528, 1180116, 1517292, 1770174, 2360232, 2655261, 3034584, 3540348, 5310522, 7080696, 10621044, 21242088]

約数ペア:

[(1, 21242088), (2, 10621044), (3, 7080696), (4, 5310522), (6, 3540348), (7, 3034584), (8, 2655261), (9, 2360232), (12, 1770174), (14, 1517292), (18, 1180116), (21, 1011528), (24, 885087), (27, 786744), (28, 758646), (36, 590058), (42, 505764), (49, 433512), (54, 393372), (56, 379323), (63, 337176), (72, 295029), (81, 262248), (84, 252882), (98, 216756), (108, 196686), (126, 168588), (147, 144504), (162, 131124), (168, 126441), (189, 112392), (196, 108378), (216, 98343), (223, 95256), (243, 87416), (252, 84294), (294, 72252), (324, 65562), (378, 56196), (392, 54189), (441, 48168), (446, 47628), (486, 43708), (504, 42147), (567, 37464), (588, 36126), (648, 32781), (669, 31752), (756, 28098), (882, 24084), (892, 23814), (972, 21854), (1134, 18732), (1176, 18063), (1323, 16056), (1338, 15876), (1512, 14049), (1561, 13608), (1701, 12488), (1764, 12042), (1784, 11907), (1944, 10927), (2007, 10584), (2268, 9366), (2646, 8028), (2676, 7938), (3122, 6804), (3402, 6244), (3528, 6021), (3969, 5352), (4014, 5292), (4536, 4683)]