18563637

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 26310528

約数和(自身を除く): 7746891

約数列:

[1, 3, 31, 47, 93, 137, 141, 411, 961, 1457, 2883, 4247, 4371, 6439, 12741, 19317, 45167, 131657, 135501, 199609, 394971, 598827, 6187879, 18563637]

約数ペア:

[(1, 18563637), (3, 6187879), (31, 598827), (47, 394971), (93, 199609), (137, 135501), (141, 131657), (411, 45167), (961, 19317), (1457, 12741), (2883, 6439), (4247, 4371)]