21550864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70891}}^1$

素因数の和:70918

約数の個数: 20

約数和(自身を含む): 43953040

約数和(自身を除く): 22402176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70891, 141782, 283564, 567128, 1134256, 1346929, 2693858, 5387716, 10775432, 21550864]

約数ペア:

[(1, 21550864), (2, 10775432), (4, 5387716), (8, 2693858), (16, 1346929), (19, 1134256), (38, 567128), (76, 283564), (152, 141782), (304, 70891)]