19888816

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18553}}^1$

素因数の和:18628

約数の個数: 20

約数和(自身を含む): 39111832

約数和(自身を除く): 19223016

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18553, 37106, 74212, 148424, 296848, 1243051, 2486102, 4972204, 9944408, 19888816]

約数ペア:

[(1, 19888816), (2, 9944408), (4, 4972204), (8, 2486102), (16, 1243051), (67, 296848), (134, 148424), (268, 74212), (536, 37106), (1072, 18553)]