398445859

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 491867136

約数和(自身を除く): 93421277

約数列:

[1, 7, 23, 37, 161, 211, 259, 317, 851, 1477, 2219, 4853, 5957, 7291, 7807, 11729, 33971, 51037, 54649, 66887, 82103, 179561, 269767, 468209, 1256927, 1538401, 1888369, 2474819, 10768807, 17323733, 56920837, 398445859]

約数ペア:

[(1, 398445859), (7, 56920837), (23, 17323733), (37, 10768807), (161, 2474819), (211, 1888369), (259, 1538401), (317, 1256927), (851, 468209), (1477, 269767), (2219, 179561), (4853, 82103), (5957, 66887), (7291, 54649), (7807, 51037), (11729, 33971)]