19778462

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1831}}^1$

素因数の和:2335

約数の個数: 16

約数和(自身を含む): 32448384

約数和(自身を除く): 12669922

約数列:

[1, 2, 11, 22, 491, 982, 1831, 3662, 5401, 10802, 20141, 40282, 899021, 1798042, 9889231, 19778462]

約数ペア:

[(1, 19778462), (2, 9889231), (11, 1798042), (22, 899021), (491, 40282), (982, 20141), (1831, 10802), (3662, 5401)]