18517616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{701}}^1$

素因数の和:849

約数の個数: 40

約数和(自身を含む): 38997504

約数和(自身を除く): 20479888

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 701, 1016, 1402, 1651, 2032, 2804, 3302, 5608, 6604, 9113, 11216, 13208, 18226, 26416, 36452, 72904, 89027, 145808, 178054, 356108, 712216, 1157351, 1424432, 2314702, 4629404, 9258808, 18517616]

約数ペア:

[(1, 18517616), (2, 9258808), (4, 4629404), (8, 2314702), (13, 1424432), (16, 1157351), (26, 712216), (52, 356108), (104, 178054), (127, 145808), (208, 89027), (254, 72904), (508, 36452), (701, 26416), (1016, 18226), (1402, 13208), (1651, 11216), (2032, 9113), (2804, 6604), (3302, 5608)]