21291058

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{797}}^1$

素因数の和:874

約数の個数: 24

約数和(自身を含む): 34660332

約数和(自身を除く): 13369274

約数列:

[1, 2, 19, 37, 38, 74, 361, 703, 722, 797, 1406, 1594, 13357, 15143, 26714, 29489, 30286, 58978, 287717, 560291, 575434, 1120582, 10645529, 21291058]

約数ペア:

[(1, 21291058), (2, 10645529), (19, 1120582), (37, 575434), (38, 560291), (74, 287717), (361, 58978), (703, 30286), (722, 29489), (797, 26714), (1406, 15143), (1594, 13357)]