21070256

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24847}}^1$

素因数の和:24908

約数の個数: 20

約数和(自身を含む): 41595552

約数和(自身を除く): 20525296

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24847, 49694, 99388, 198776, 397552, 1316891, 2633782, 5267564, 10535128, 21070256]

約数ペア:

[(1, 21070256), (2, 10535128), (4, 5267564), (8, 2633782), (16, 1316891), (53, 397552), (106, 198776), (212, 99388), (424, 49694), (848, 24847)]