20831876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12923}}^1$

素因数の和:12971

約数の個数: 24

約数和(自身を含む): 40529664

約数和(自身を除く): 19697788

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12923, 25846, 51692, 167999, 335998, 400613, 671996, 801226, 1602452, 5207969, 10415938, 20831876]

約数ペア:

[(1, 20831876), (2, 10415938), (4, 5207969), (13, 1602452), (26, 801226), (31, 671996), (52, 400613), (62, 335998), (124, 167999), (403, 51692), (806, 25846), (1612, 12923)]