28519722

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^3$

素因数の和:86

約数の個数: 128

約数和(自身を含む): 83404800

約数和(自身を除く): 54885078

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 27, 33, 38, 42, 54, 57, 63, 66, 77, 99, 114, 126, 133, 154, 171, 189, 198, 209, 231, 266, 297, 342, 361, 378, 399, 418, 462, 513, 594, 627, 693, 722, 798, 1026, 1083, 1197, 1254, 1386, 1463, 1881, 2079, 2166, 2394, 2527, 2926, 3249, 3591, 3762, 3971, 4158, 4389, 5054, 5643, 6498, 6859, 7182, 7581, 7942, 8778, 9747, 11286, 11913, 13167, 13718, 15162, 19494, 20577, 22743, 23826, 26334, 27797, 35739, 39501, 41154, 45486, 48013, 55594, 61731, 68229, 71478, 75449, 79002, 83391, 96026, 107217, 123462, 136458, 144039, 150898, 166782, 185193, 214434, 226347, 250173, 288078, 370386, 432117, 452694, 500346, 528143, 679041, 750519, 864234, 1056286, 1296351, 1358082, 1501038, 1584429, 2037123, 2592702, 3168858, 4074246, 4753287, 9506574, 14259861, 28519722]

約数ペア:

[(1, 28519722), (2, 14259861), (3, 9506574), (6, 4753287), (7, 4074246), (9, 3168858), (11, 2592702), (14, 2037123), (18, 1584429), (19, 1501038), (21, 1358082), (22, 1296351), (27, 1056286), (33, 864234), (38, 750519), (42, 679041), (54, 528143), (57, 500346), (63, 452694), (66, 432117), (77, 370386), (99, 288078), (114, 250173), (126, 226347), (133, 214434), (154, 185193), (171, 166782), (189, 150898), (198, 144039), (209, 136458), (231, 123462), (266, 107217), (297, 96026), (342, 83391), (361, 79002), (378, 75449), (399, 71478), (418, 68229), (462, 61731), (513, 55594), (594, 48013), (627, 45486), (693, 41154), (722, 39501), (798, 35739), (1026, 27797), (1083, 26334), (1197, 23826), (1254, 22743), (1386, 20577), (1463, 19494), (1881, 15162), (2079, 13718), (2166, 13167), (2394, 11913), (2527, 11286), (2926, 9747), (3249, 8778), (3591, 7942), (3762, 7581), (3971, 7182), (4158, 6859), (4389, 6498), (5054, 5643)]