21698512

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 48996864

約数和(自身を除く): 27298352

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 41, 44, 62, 82, 88, 97, 124, 164, 176, 194, 248, 328, 341, 388, 451, 496, 656, 682, 776, 902, 1067, 1271, 1364, 1552, 1804, 2134, 2542, 2728, 3007, 3608, 3977, 4268, 5084, 5456, 6014, 7216, 7954, 8536, 10168, 12028, 13981, 15908, 17072, 20336, 24056, 27962, 31816, 33077, 43747, 48112, 55924, 63632, 66154, 87494, 111848, 123287, 132308, 174988, 223696, 246574, 264616, 349976, 493148, 529232, 699952, 986296, 1356157, 1972592, 2712314, 5424628, 10849256, 21698512]

約数ペア:

[(1, 21698512), (2, 10849256), (4, 5424628), (8, 2712314), (11, 1972592), (16, 1356157), (22, 986296), (31, 699952), (41, 529232), (44, 493148), (62, 349976), (82, 264616), (88, 246574), (97, 223696), (124, 174988), (164, 132308), (176, 123287), (194, 111848), (248, 87494), (328, 66154), (341, 63632), (388, 55924), (451, 48112), (496, 43747), (656, 33077), (682, 31816), (776, 27962), (902, 24056), (1067, 20336), (1271, 17072), (1364, 15908), (1552, 13981), (1804, 12028), (2134, 10168), (2542, 8536), (2728, 7954), (3007, 7216), (3608, 6014), (3977, 5456), (4268, 5084)]