20736584

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3863}}^1$

素因数の和:3941

約数の個数: 32

約数和(自身を含む): 43122240

約数和(自身を除く): 22385656

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3863, 5368, 7726, 15452, 30904, 42493, 84986, 169972, 235643, 339944, 471286, 942572, 1885144, 2592073, 5184146, 10368292, 20736584]

約数ペア:

[(1, 20736584), (2, 10368292), (4, 5184146), (8, 2592073), (11, 1885144), (22, 942572), (44, 471286), (61, 339944), (88, 235643), (122, 169972), (244, 84986), (488, 42493), (671, 30904), (1342, 15452), (2684, 7726), (3863, 5368)]