399341999

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{10211}}^1$

素因数の和:10406

約数の個数: 16

約数和(自身を含む): 471876096

約数和(自身を除く): 72534097

約数列:

[1, 7, 37, 151, 259, 1057, 5587, 10211, 39109, 71477, 377807, 1541861, 2644649, 10793027, 57048857, 399341999]

約数ペア:

[(1, 399341999), (7, 57048857), (37, 10793027), (151, 2644649), (259, 1541861), (1057, 377807), (5587, 71477), (10211, 39109)]