28013221821

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{2179}}^1\times {\mathrm{25357}}^1$

素因数の和:27565

約数の個数: 24

約数和(自身を含む): 40465282080

約数和(自身を除く): 12452060259

約数列:

[1, 3, 13, 39, 169, 507, 2179, 6537, 25357, 28327, 76071, 84981, 329641, 368251, 988923, 1104753, 4285333, 12855999, 55252903, 165758709, 718287739, 2154863217, 9337740607, 28013221821]

約数ペア:

[(1, 28013221821), (3, 9337740607), (13, 2154863217), (39, 718287739), (169, 165758709), (507, 55252903), (2179, 12855999), (6537, 4285333), (25357, 1104753), (28327, 988923), (76071, 368251), (84981, 329641)]