21481254

素因数分解:

$2^1\times 3^3\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2209

約数の個数: 32

約数和(自身を含む): 48000000

約数和(自身を除く): 26518746

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 199, 398, 597, 1194, 1791, 1999, 3582, 3998, 5373, 5997, 10746, 11994, 17991, 35982, 53973, 107946, 397801, 795602, 1193403, 2386806, 3580209, 7160418, 10740627, 21481254]

約数ペア:

[(1, 21481254), (2, 10740627), (3, 7160418), (6, 3580209), (9, 2386806), (18, 1193403), (27, 795602), (54, 397801), (199, 107946), (398, 53973), (597, 35982), (1194, 17991), (1791, 11994), (1999, 10746), (3582, 5997), (3998, 5373)]