20339193

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 32358400

約数和(自身を除く): 12019207

約数列:

[1, 3, 7, 21, 31, 93, 157, 199, 217, 471, 597, 651, 1099, 1393, 3297, 4179, 4867, 6169, 14601, 18507, 31243, 34069, 43183, 93729, 102207, 129549, 218701, 656103, 968533, 2905599, 6779731, 20339193]

約数ペア:

[(1, 20339193), (3, 6779731), (7, 2905599), (21, 968533), (31, 656103), (93, 218701), (157, 129549), (199, 102207), (217, 93729), (471, 43183), (597, 34069), (651, 31243), (1099, 18507), (1393, 14601), (3297, 6169), (4179, 4867)]