20703529

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 26692416

約数和(自身を除く): 5988887

約数列:

[1, 7, 11, 49, 71, 77, 497, 539, 541, 781, 3479, 3787, 5467, 5951, 26509, 38269, 38411, 41657, 268877, 291599, 422521, 1882139, 2957647, 20703529]

約数ペア:

[(1, 20703529), (7, 2957647), (11, 1882139), (49, 422521), (71, 291599), (77, 268877), (497, 41657), (539, 38411), (541, 38269), (781, 26509), (3479, 5951), (3787, 5467)]