21047842

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1\times {\mathrm{907}}^1$

素因数の和:1233

約数の個数: 16

約数和(自身を含む): 32491872

約数和(自身を除く): 11444030

約数列:

[1, 2, 41, 82, 283, 566, 907, 1814, 11603, 23206, 37187, 74374, 256681, 513362, 10523921, 21047842]

約数ペア:

[(1, 21047842), (2, 10523921), (41, 513362), (82, 256681), (283, 74374), (566, 37187), (907, 23206), (1814, 11603)]