20879604

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 56576520

約数和(自身を除く): 35696916

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 109, 153, 204, 218, 306, 313, 327, 436, 612, 626, 654, 939, 981, 1252, 1308, 1853, 1878, 1962, 2817, 3706, 3756, 3924, 5321, 5559, 5634, 7412, 10642, 11118, 11268, 15963, 16677, 21284, 22236, 31926, 33354, 34117, 47889, 63852, 66708, 68234, 95778, 102351, 136468, 191556, 204702, 307053, 409404, 579989, 614106, 1159978, 1228212, 1739967, 2319956, 3479934, 5219901, 6959868, 10439802, 20879604]

約数ペア:

[(1, 20879604), (2, 10439802), (3, 6959868), (4, 5219901), (6, 3479934), (9, 2319956), (12, 1739967), (17, 1228212), (18, 1159978), (34, 614106), (36, 579989), (51, 409404), (68, 307053), (102, 204702), (109, 191556), (153, 136468), (204, 102351), (218, 95778), (306, 68234), (313, 66708), (327, 63852), (436, 47889), (612, 34117), (626, 33354), (654, 31926), (939, 22236), (981, 21284), (1252, 16677), (1308, 15963), (1853, 11268), (1878, 11118), (1962, 10642), (2817, 7412), (3706, 5634), (3756, 5559), (3924, 5321)]