18774426

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{577}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 44945280

約数和(自身を除く): 26170854

約数列:

[1, 2, 3, 6, 11, 17, 22, 29, 33, 34, 51, 58, 66, 87, 102, 174, 187, 319, 374, 493, 561, 577, 638, 957, 986, 1122, 1154, 1479, 1731, 1914, 2958, 3462, 5423, 6347, 9809, 10846, 12694, 16269, 16733, 19041, 19618, 29427, 32538, 33466, 38082, 50199, 58854, 100398, 107899, 184063, 215798, 284461, 323697, 368126, 552189, 568922, 647394, 853383, 1104378, 1706766, 3129071, 6258142, 9387213, 18774426]

約数ペア:

[(1, 18774426), (2, 9387213), (3, 6258142), (6, 3129071), (11, 1706766), (17, 1104378), (22, 853383), (29, 647394), (33, 568922), (34, 552189), (51, 368126), (58, 323697), (66, 284461), (87, 215798), (102, 184063), (174, 107899), (187, 100398), (319, 58854), (374, 50199), (493, 38082), (561, 33466), (577, 32538), (638, 29427), (957, 19618), (986, 19041), (1122, 16733), (1154, 16269), (1479, 12694), (1731, 10846), (1914, 9809), (2958, 6347), (3462, 5423)]