21731418

素因数分解:

$2^1\times 3^2\times {\mathrm{1031}}^1\times {\mathrm{1171}}^1$

素因数の和:2210

約数の個数: 24

約数和(自身を含む): 47170656

約数和(自身を除く): 25439238

約数列:

[1, 2, 3, 6, 9, 18, 1031, 1171, 2062, 2342, 3093, 3513, 6186, 7026, 9279, 10539, 18558, 21078, 1207301, 2414602, 3621903, 7243806, 10865709, 21731418]

約数ペア:

[(1, 21731418), (2, 10865709), (3, 7243806), (6, 3621903), (9, 2414602), (18, 1207301), (1031, 21078), (1171, 18558), (2062, 10539), (2342, 9279), (3093, 7026), (3513, 6186)]