1981347641

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1\times {\mathrm{599}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 2468659200

約数和(自身を除く): 487311559

約数列:

[1, 7, 13, 91, 163, 223, 599, 1141, 1561, 2119, 2899, 4193, 7787, 14833, 20293, 36349, 54509, 97637, 133577, 254443, 472537, 683459, 935039, 1269281, 1736501, 3307759, 8884967, 12155507, 21773051, 152411357, 283049663, 1981347641]

約数ペア:

[(1, 1981347641), (7, 283049663), (13, 152411357), (91, 21773051), (163, 12155507), (223, 8884967), (599, 3307759), (1141, 1736501), (1561, 1269281), (2119, 935039), (2899, 683459), (4193, 472537), (7787, 254443), (14833, 133577), (20293, 97637), (36349, 54509)]