20909896

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5573}}^1$

素因数の和:5653

約数の個数: 32

約数和(自身を含む): 45483840

約数和(自身を除く): 24573944

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5573, 11146, 22292, 39011, 44584, 78022, 156044, 312088, 373391, 746782, 1493564, 2613737, 2987128, 5227474, 10454948, 20909896]

約数ペア:

[(1, 20909896), (2, 10454948), (4, 5227474), (7, 2987128), (8, 2613737), (14, 1493564), (28, 746782), (56, 373391), (67, 312088), (134, 156044), (268, 78022), (469, 44584), (536, 39011), (938, 22292), (1876, 11146), (3752, 5573)]