17939795

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 22096800

約数和(自身を除く): 4157005

約数列:

[1, 5, 61, 131, 305, 449, 655, 2245, 7991, 27389, 39955, 58819, 136945, 294095, 3587959, 17939795]

約数ペア:

[(1, 17939795), (5, 3587959), (61, 294095), (131, 136945), (305, 58819), (449, 39955), (655, 27389), (2245, 7991)]