21040272

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:421

約数の個数: 120

約数和(自身を含む): 66156480

約数和(自身を除く): 45116208

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 37, 44, 48, 66, 72, 74, 88, 99, 111, 132, 144, 148, 176, 198, 222, 264, 296, 333, 359, 396, 407, 444, 528, 592, 666, 718, 792, 814, 888, 1077, 1221, 1332, 1436, 1584, 1628, 1776, 2154, 2442, 2664, 2872, 3231, 3256, 3663, 3949, 4308, 4884, 5328, 5744, 6462, 6512, 7326, 7898, 8616, 9768, 11847, 12924, 13283, 14652, 15796, 17232, 19536, 23694, 25848, 26566, 29304, 31592, 35541, 39849, 47388, 51696, 53132, 58608, 63184, 71082, 79698, 94776, 106264, 119547, 142164, 146113, 159396, 189552, 212528, 239094, 284328, 292226, 318792, 438339, 478188, 568656, 584452, 637584, 876678, 956376, 1168904, 1315017, 1753356, 1912752, 2337808, 2630034, 3506712, 5260068, 7013424, 10520136, 21040272]

約数ペア:

[(1, 21040272), (2, 10520136), (3, 7013424), (4, 5260068), (6, 3506712), (8, 2630034), (9, 2337808), (11, 1912752), (12, 1753356), (16, 1315017), (18, 1168904), (22, 956376), (24, 876678), (33, 637584), (36, 584452), (37, 568656), (44, 478188), (48, 438339), (66, 318792), (72, 292226), (74, 284328), (88, 239094), (99, 212528), (111, 189552), (132, 159396), (144, 146113), (148, 142164), (176, 119547), (198, 106264), (222, 94776), (264, 79698), (296, 71082), (333, 63184), (359, 58608), (396, 53132), (407, 51696), (444, 47388), (528, 39849), (592, 35541), (666, 31592), (718, 29304), (792, 26566), (814, 25848), (888, 23694), (1077, 19536), (1221, 17232), (1332, 15796), (1436, 14652), (1584, 13283), (1628, 12924), (1776, 11847), (2154, 9768), (2442, 8616), (2664, 7898), (2872, 7326), (3231, 6512), (3256, 6462), (3663, 5744), (3949, 5328), (4308, 4884)]