21531304

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{62591}}^1$

素因数の和:62640

約数の個数: 16

約数和(自身を含む): 41310720

約数和(自身を除く): 19779416

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 62591, 125182, 250364, 500728, 2691413, 5382826, 10765652, 21531304]

約数ペア:

[(1, 21531304), (2, 10765652), (4, 5382826), (8, 2691413), (43, 500728), (86, 250364), (172, 125182), (344, 62591)]