20782916

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67477}}^1$

素因数の和:67499

約数の個数: 24

約数和(自身を含む): 45345216

約数和(自身を除く): 24562300

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67477, 134954, 269908, 472339, 742247, 944678, 1484494, 1889356, 2968988, 5195729, 10391458, 20782916]

約数ペア:

[(1, 20782916), (2, 10391458), (4, 5195729), (7, 2968988), (11, 1889356), (14, 1484494), (22, 944678), (28, 742247), (44, 472339), (77, 269908), (154, 134954), (308, 67477)]