19770224

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{15641}}^1$

素因数の和:15728

約数の個数: 20

約数和(自身を含む): 38792160

約数和(自身を除く): 19021936

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 15641, 31282, 62564, 125128, 250256, 1235639, 2471278, 4942556, 9885112, 19770224]

約数ペア:

[(1, 19770224), (2, 9885112), (4, 4942556), (8, 2471278), (16, 1235639), (79, 250256), (158, 125128), (316, 62564), (632, 31282), (1264, 15641)]