19639268

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40577}}^1$

素因数の和:40603

約数の個数: 18

約数和(自身を含む): 37778118

約数和(自身を除く): 18138850

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40577, 81154, 162308, 446347, 892694, 1785388, 4909817, 9819634, 19639268]

約数ペア:

[(1, 19639268), (2, 9819634), (4, 4909817), (11, 1785388), (22, 892694), (44, 446347), (121, 162308), (242, 81154), (484, 40577)]