20984970544

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{557}}^1\times {\mathrm{138511}}^1$

素因数の和:139093

約数の個数: 40

約数和(自身を含む): 43127650368

約数和(自身を除く): 22142679824

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 557, 1114, 2228, 4456, 8912, 9469, 18938, 37876, 75752, 138511, 151504, 277022, 554044, 1108088, 2216176, 2354687, 4709374, 9418748, 18837496, 37674992, 77150627, 154301254, 308602508, 617205016, 1234410032, 1311560659, 2623121318, 5246242636, 10492485272, 20984970544]

約数ペア:

[(1, 20984970544), (2, 10492485272), (4, 5246242636), (8, 2623121318), (16, 1311560659), (17, 1234410032), (34, 617205016), (68, 308602508), (136, 154301254), (272, 77150627), (557, 37674992), (1114, 18837496), (2228, 9418748), (4456, 4709374), (8912, 2354687), (9469, 2216176), (18938, 1108088), (37876, 554044), (75752, 277022), (138511, 151504)]