21727294

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{1031}}^1$

素因数の和:1331

約数の個数: 16

約数和(自身を含む): 33548256

約数和(自身を除く): 11820962

約数列:

[1, 2, 41, 82, 257, 514, 1031, 2062, 10537, 21074, 42271, 84542, 264967, 529934, 10863647, 21727294]

約数ペア:

[(1, 21727294), (2, 10863647), (41, 529934), (82, 264967), (257, 84542), (514, 42271), (1031, 21074), (2062, 10537)]