75891991

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2154

約数の個数: 16

約数和(自身を含む): 89190720

約数和(自身を除く): 13298729

約数列:

[1, 7, 61, 89, 427, 623, 1997, 5429, 13979, 38003, 121817, 177733, 852719, 1244131, 10841713, 75891991]

約数ペア:

[(1, 75891991), (7, 10841713), (61, 1244131), (89, 852719), (427, 177733), (623, 121817), (1997, 38003), (5429, 13979)]