81878972

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{13859}}^1$

素因数の和:14081

約数の個数: 24

約数和(自身を含む): 164545920

約数和(自身を除く): 82666948

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 5908, 13859, 27718, 55436, 97013, 194026, 388052, 2924249, 5848498, 11696996, 20469743, 40939486, 81878972]

約数ペア:

[(1, 81878972), (2, 40939486), (4, 20469743), (7, 11696996), (14, 5848498), (28, 2924249), (211, 388052), (422, 194026), (844, 97013), (1477, 55436), (2954, 27718), (5908, 13859)]