21102664

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239803}}^1$

素因数の和:239820

約数の個数: 16

約数和(自身を含む): 43164720

約数和(自身を除く): 22062056

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239803, 479606, 959212, 1918424, 2637833, 5275666, 10551332, 21102664]

約数ペア:

[(1, 21102664), (2, 10551332), (4, 5275666), (8, 2637833), (11, 1918424), (22, 959212), (44, 479606), (88, 239803)]