21939358

素因数分解:

$2^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{1061}}^1$

素因数の和:1288

約数の個数: 24

約数和(自身を含む): 38499624

約数和(自身を除く): 16560266

約数列:

[1, 2, 7, 14, 49, 98, 211, 422, 1061, 1477, 2122, 2954, 7427, 10339, 14854, 20678, 51989, 103978, 223871, 447742, 1567097, 3134194, 10969679, 21939358]

約数ペア:

[(1, 21939358), (2, 10969679), (7, 3134194), (14, 1567097), (49, 447742), (98, 223871), (211, 103978), (422, 51989), (1061, 20678), (1477, 14854), (2122, 10339), (2954, 7427)]