21880924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{857}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 41369328

約数和(自身を除く): 19488404

約数列:

[1, 2, 4, 13, 26, 52, 491, 857, 982, 1714, 1964, 3428, 6383, 11141, 12766, 22282, 25532, 44564, 420787, 841574, 1683148, 5470231, 10940462, 21880924]

約数ペア:

[(1, 21880924), (2, 10940462), (4, 5470231), (13, 1683148), (26, 841574), (52, 420787), (491, 44564), (857, 25532), (982, 22282), (1714, 12766), (1964, 11141), (3428, 6383)]