221651984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:424

約数の個数: 80

約数和(自身を含む): 475969536

約数和(自身を除く): 254317552

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 97, 124, 136, 194, 248, 271, 272, 388, 496, 527, 542, 776, 1054, 1084, 1552, 1649, 2108, 2168, 3007, 3298, 4216, 4336, 4607, 6014, 6596, 8401, 8432, 9214, 12028, 13192, 16802, 18428, 24056, 26287, 26384, 33604, 36856, 48112, 51119, 52574, 67208, 73712, 102238, 105148, 134416, 142817, 204476, 210296, 285634, 408952, 420592, 446879, 571268, 814897, 817904, 893758, 1142536, 1629794, 1787516, 2285072, 3259588, 3575032, 6519176, 7150064, 13038352, 13853249, 27706498, 55412996, 110825992, 221651984]

約数ペア:

[(1, 221651984), (2, 110825992), (4, 55412996), (8, 27706498), (16, 13853249), (17, 13038352), (31, 7150064), (34, 6519176), (62, 3575032), (68, 3259588), (97, 2285072), (124, 1787516), (136, 1629794), (194, 1142536), (248, 893758), (271, 817904), (272, 814897), (388, 571268), (496, 446879), (527, 420592), (542, 408952), (776, 285634), (1054, 210296), (1084, 204476), (1552, 142817), (1649, 134416), (2108, 105148), (2168, 102238), (3007, 73712), (3298, 67208), (4216, 52574), (4336, 51119), (4607, 48112), (6014, 36856), (6596, 33604), (8401, 26384), (8432, 26287), (9214, 24056), (12028, 18428), (13192, 16802)]