20171944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2657}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 41305320

約数和(自身を除く): 21133376

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2657, 3796, 5314, 7592, 10628, 21256, 34541, 69082, 138164, 193961, 276328, 387922, 775844, 1551688, 2521493, 5042986, 10085972, 20171944]

約数ペア:

[(1, 20171944), (2, 10085972), (4, 5042986), (8, 2521493), (13, 1551688), (26, 775844), (52, 387922), (73, 276328), (104, 193961), (146, 138164), (292, 69082), (584, 34541), (949, 21256), (1898, 10628), (2657, 7592), (3796, 5314)]