21897128

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{22621}}^1$

素因数の和:22649

約数の個数: 24

約数和(自身を含む): 45130890

約数和(自身を除く): 23233762

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 22621, 45242, 90484, 180968, 248831, 497662, 995324, 1990648, 2737141, 5474282, 10948564, 21897128]

約数ペア:

[(1, 21897128), (2, 10948564), (4, 5474282), (8, 2737141), (11, 1990648), (22, 995324), (44, 497662), (88, 248831), (121, 180968), (242, 90484), (484, 45242), (968, 22621)]