21977852

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{11423}}^1$

素因数の和:11477

約数の個数: 24

約数和(自身を含む): 42542976

約数和(自身を除く): 20565124

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 11423, 22846, 45692, 148499, 296998, 422651, 593996, 845302, 1690604, 5494463, 10988926, 21977852]

約数ペア:

[(1, 21977852), (2, 10988926), (4, 5494463), (13, 1690604), (26, 845302), (37, 593996), (52, 422651), (74, 296998), (148, 148499), (481, 45692), (962, 22846), (1924, 11423)]