21308512

素因数分解:

$2^5\times {\mathrm{79}}^1\times {\mathrm{8429}}^1$

素因数の和:8518

約数の個数: 24

約数和(自身を含む): 42487200

約数和(自身を除く): 21178688

約数列:

[1, 2, 4, 8, 16, 32, 79, 158, 316, 632, 1264, 2528, 8429, 16858, 33716, 67432, 134864, 269728, 665891, 1331782, 2663564, 5327128, 10654256, 21308512]

約数ペア:

[(1, 21308512), (2, 10654256), (4, 5327128), (8, 2663564), (16, 1331782), (32, 665891), (79, 269728), (158, 134864), (316, 67432), (632, 33716), (1264, 16858), (2528, 8429)]