20851075

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6271}}^1$

素因数の和:6307

約数の個数: 24

約数和(自身を含む): 31109120

約数和(自身を除く): 10258045

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 6271, 31355, 43897, 119149, 156775, 219485, 595745, 834043, 1097425, 2978725, 4170215, 20851075]

約数ペア:

[(1, 20851075), (5, 4170215), (7, 2978725), (19, 1097425), (25, 834043), (35, 595745), (95, 219485), (133, 156775), (175, 119149), (475, 43897), (665, 31355), (3325, 6271)]