20187643

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 3451397

約数列:

[1, 7, 71, 151, 269, 497, 1057, 1883, 10721, 19099, 40619, 75047, 133693, 284333, 2883949, 20187643]

約数ペア:

[(1, 20187643), (7, 2883949), (71, 284333), (151, 133693), (269, 75047), (497, 40619), (1057, 19099), (1883, 10721)]