21221026

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{1889}}^1$

素因数の和:2069

約数の個数: 16

約数和(自身を含む): 32863320

約数和(自身を除く): 11642294

約数列:

[1, 2, 41, 82, 137, 274, 1889, 3778, 5617, 11234, 77449, 154898, 258793, 517586, 10610513, 21221026]

約数ペア:

[(1, 21221026), (2, 10610513), (41, 517586), (82, 258793), (137, 154898), (274, 77449), (1889, 11234), (3778, 5617)]