19971055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2719}}^1$

素因数の和:2850

約数の個数: 16

約数和(自身を含む): 26046720

約数和(自身を除く): 6075665

約数列:

[1, 5, 13, 65, 113, 565, 1469, 2719, 7345, 13595, 35347, 176735, 307247, 1536235, 3994211, 19971055]

約数ペア:

[(1, 19971055), (5, 3994211), (13, 1536235), (65, 307247), (113, 176735), (565, 35347), (1469, 13595), (2719, 7345)]