21661902

素因数分解:

$2^1\times 3^2\times {\mathrm{1019}}^1\times {\mathrm{1181}}^1$

素因数の和:2208

約数の個数: 24

約数和(自身を含む): 47019960

約数和(自身を除く): 25358058

約数列:

[1, 2, 3, 6, 9, 18, 1019, 1181, 2038, 2362, 3057, 3543, 6114, 7086, 9171, 10629, 18342, 21258, 1203439, 2406878, 3610317, 7220634, 10830951, 21661902]

約数ペア:

[(1, 21661902), (2, 10830951), (3, 7220634), (6, 3610317), (9, 2406878), (18, 1203439), (1019, 21258), (1181, 18342), (2038, 10629), (2362, 9171), (3057, 7086), (3543, 6114)]