21810415868

素因数分解:

$2^2\times {\mathrm{523}}^1\times {\mathrm{997}}^1\times {\mathrm{10457}}^1$

素因数の和:11981

約数の個数: 24

約数和(自身を含む): 38283224112

約数和(自身を除く): 16472808244

約数列:

[1, 2, 4, 523, 997, 1046, 1994, 2092, 3988, 10457, 20914, 41828, 521431, 1042862, 2085724, 5469011, 10425629, 10938022, 20851258, 21876044, 41702516, 5452603967, 10905207934, 21810415868]

約数ペア:

[(1, 21810415868), (2, 10905207934), (4, 5452603967), (523, 41702516), (997, 21876044), (1046, 20851258), (1994, 10938022), (2092, 10425629), (3988, 5469011), (10457, 2085724), (20914, 1042862), (41828, 521431)]