21267956

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 37895424

約数和(自身を除く): 16627468

約数列:

[1, 2, 4, 113, 211, 223, 226, 422, 446, 452, 844, 892, 23843, 25199, 47053, 47686, 50398, 94106, 95372, 100796, 188212, 5316989, 10633978, 21267956]

約数ペア:

[(1, 21267956), (2, 10633978), (4, 5316989), (113, 188212), (211, 100796), (223, 95372), (226, 94106), (422, 50398), (446, 47686), (452, 47053), (844, 25199), (892, 23843)]