18391556

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2089}}^1$

素因数の和:2195

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 15315964

約数列:

[1, 2, 4, 31, 62, 71, 124, 142, 284, 2089, 2201, 4178, 4402, 8356, 8804, 64759, 129518, 148319, 259036, 296638, 593276, 4597889, 9195778, 18391556]

約数ペア:

[(1, 18391556), (2, 9195778), (4, 4597889), (31, 593276), (62, 296638), (71, 259036), (124, 148319), (142, 129518), (284, 64759), (2089, 8804), (2201, 8356), (4178, 4402)]