21318934

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2857}}^1$

素因数の和:2920

約数の個数: 32

約数和(自身を含む): 40332096

約数和(自身を除く): 19013162

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 182, 287, 533, 574, 1066, 2857, 3731, 5714, 7462, 19999, 37141, 39998, 74282, 117137, 234274, 259987, 519974, 819959, 1522781, 1639918, 3045562, 10659467, 21318934]

約数ペア:

[(1, 21318934), (2, 10659467), (7, 3045562), (13, 1639918), (14, 1522781), (26, 819959), (41, 519974), (82, 259987), (91, 234274), (182, 117137), (287, 74282), (533, 39998), (574, 37141), (1066, 19999), (2857, 7462), (3731, 5714)]