18788378

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 17983462

約数列:

[1, 2, 7, 14, 19, 23, 37, 38, 46, 74, 83, 133, 161, 166, 259, 266, 322, 437, 518, 581, 703, 851, 874, 1162, 1406, 1577, 1702, 1909, 3059, 3071, 3154, 3818, 4921, 5957, 6118, 6142, 9842, 11039, 11914, 13363, 16169, 21497, 22078, 26726, 32338, 36271, 42994, 58349, 70633, 72542, 113183, 116698, 141266, 226366, 253897, 408443, 494431, 507794, 816886, 988862, 1342027, 2684054, 9394189, 18788378]

約数ペア:

[(1, 18788378), (2, 9394189), (7, 2684054), (14, 1342027), (19, 988862), (23, 816886), (37, 507794), (38, 494431), (46, 408443), (74, 253897), (83, 226366), (133, 141266), (161, 116698), (166, 113183), (259, 72542), (266, 70633), (322, 58349), (437, 42994), (518, 36271), (581, 32338), (703, 26726), (851, 22078), (874, 21497), (1162, 16169), (1406, 13363), (1577, 11914), (1702, 11039), (1909, 9842), (3059, 6142), (3071, 6118), (3154, 5957), (3818, 4921)]