18243368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 23124952

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 37, 44, 52, 74, 88, 104, 143, 148, 286, 296, 407, 431, 481, 572, 814, 862, 962, 1144, 1628, 1724, 1924, 3256, 3448, 3848, 4741, 5291, 5603, 9482, 10582, 11206, 15947, 18964, 21164, 22412, 31894, 37928, 42328, 44824, 61633, 63788, 123266, 127576, 175417, 207311, 246532, 350834, 414622, 493064, 701668, 829244, 1403336, 1658488, 2280421, 4560842, 9121684, 18243368]

約数ペア:

[(1, 18243368), (2, 9121684), (4, 4560842), (8, 2280421), (11, 1658488), (13, 1403336), (22, 829244), (26, 701668), (37, 493064), (44, 414622), (52, 350834), (74, 246532), (88, 207311), (104, 175417), (143, 127576), (148, 123266), (286, 63788), (296, 61633), (407, 44824), (431, 42328), (481, 37928), (572, 31894), (814, 22412), (862, 21164), (962, 18964), (1144, 15947), (1628, 11206), (1724, 10582), (1924, 9482), (3256, 5603), (3448, 5291), (3848, 4741)]