20940976

素因数分解:

$2^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1033}}^1$

素因数の和:1229

約数の個数: 40

約数和(自身を含む): 46670624

約数和(自身を除く): 25729648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 181, 362, 724, 1033, 1267, 1448, 2066, 2534, 2896, 4132, 5068, 7231, 8264, 10136, 14462, 16528, 20272, 28924, 57848, 115696, 186973, 373946, 747892, 1308811, 1495784, 2617622, 2991568, 5235244, 10470488, 20940976]

約数ペア:

[(1, 20940976), (2, 10470488), (4, 5235244), (7, 2991568), (8, 2617622), (14, 1495784), (16, 1308811), (28, 747892), (56, 373946), (112, 186973), (181, 115696), (362, 57848), (724, 28924), (1033, 20272), (1267, 16528), (1448, 14462), (2066, 10136), (2534, 8264), (2896, 7231), (4132, 5068)]