20989782

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{467}}^1$

素因数の和:713

約数の個数: 48

約数和(自身を含む): 49937472

約数和(自身を除く): 28947690

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 227, 454, 467, 681, 934, 1362, 1401, 2043, 2497, 2802, 4086, 4203, 4994, 5137, 7491, 8406, 10274, 14982, 15411, 22473, 30822, 44946, 46233, 92466, 106009, 212018, 318027, 636054, 954081, 1166099, 1908162, 2332198, 3498297, 6996594, 10494891, 20989782]

約数ペア:

[(1, 20989782), (2, 10494891), (3, 6996594), (6, 3498297), (9, 2332198), (11, 1908162), (18, 1166099), (22, 954081), (33, 636054), (66, 318027), (99, 212018), (198, 106009), (227, 92466), (454, 46233), (467, 44946), (681, 30822), (934, 22473), (1362, 15411), (1401, 14982), (2043, 10274), (2497, 8406), (2802, 7491), (4086, 5137), (4203, 4994)]