20078029167

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1\times {\mathrm{557}}^1$

素因数の和:992

約数の個数: 64

約数和(自身を含む): 31587978240

約数和(自身を除く): 11509949073

約数列:

[1, 3, 7, 21, 53, 139, 159, 233, 371, 417, 557, 699, 973, 1113, 1631, 1671, 2919, 3899, 4893, 7367, 11697, 12349, 22101, 29521, 32387, 37047, 51569, 77423, 86443, 88563, 97161, 129781, 154707, 206647, 226709, 232269, 259329, 389343, 541961, 619941, 680127, 908467, 1625883, 1716511, 2725401, 4103419, 5149533, 6878393, 12015577, 12310257, 18039559, 20635179, 28723933, 36046731, 48148751, 54118677, 86171799, 126276913, 144446253, 378830739, 956096627, 2868289881, 6692676389, 20078029167]

約数ペア:

[(1, 20078029167), (3, 6692676389), (7, 2868289881), (21, 956096627), (53, 378830739), (139, 144446253), (159, 126276913), (233, 86171799), (371, 54118677), (417, 48148751), (557, 36046731), (699, 28723933), (973, 20635179), (1113, 18039559), (1631, 12310257), (1671, 12015577), (2919, 6878393), (3899, 5149533), (4893, 4103419), (7367, 2725401), (11697, 1716511), (12349, 1625883), (22101, 908467), (29521, 680127), (32387, 619941), (37047, 541961), (51569, 389343), (77423, 259329), (86443, 232269), (88563, 226709), (97161, 206647), (129781, 154707)]