19906190

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14321}}^1$

素因数の和:14467

約数の個数: 16

約数和(自身を含む): 36091440

約数和(自身を除く): 16185250

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 14321, 28642, 71605, 143210, 1990619, 3981238, 9953095, 19906190]

約数ペア:

[(1, 19906190), (2, 9953095), (5, 3981238), (10, 1990619), (139, 143210), (278, 71605), (695, 28642), (1390, 14321)]