20906286

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{239}}^2$

素因数の和:544

約数の個数: 24

約数和(自身を含む): 42676584

約数和(自身を除く): 21770298

約数列:

[1, 2, 3, 6, 61, 122, 183, 239, 366, 478, 717, 1434, 14579, 29158, 43737, 57121, 87474, 114242, 171363, 342726, 3484381, 6968762, 10453143, 20906286]

約数ペア:

[(1, 20906286), (2, 10453143), (3, 6968762), (6, 3484381), (61, 342726), (122, 171363), (183, 114242), (239, 87474), (366, 57121), (478, 43737), (717, 29158), (1434, 14579)]