20787152

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19391}}^1$

素因数の和:19466

約数の個数: 20

約数和(自身を含む): 40878336

約数和(自身を除く): 20091184

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19391, 38782, 77564, 155128, 310256, 1299197, 2598394, 5196788, 10393576, 20787152]

約数ペア:

[(1, 20787152), (2, 10393576), (4, 5196788), (8, 2598394), (16, 1299197), (67, 310256), (134, 155128), (268, 77564), (536, 38782), (1072, 19391)]