20499535

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 30108672

約数和(自身を除く): 9609137

約数列:

[1, 5, 7, 17, 35, 85, 119, 131, 263, 595, 655, 917, 1315, 1841, 2227, 4471, 4585, 9205, 11135, 15589, 22355, 31297, 34453, 77945, 156485, 172265, 241171, 585701, 1205855, 2928505, 4099907, 20499535]

約数ペア:

[(1, 20499535), (5, 4099907), (7, 2928505), (17, 1205855), (35, 585701), (85, 241171), (119, 172265), (131, 156485), (263, 77945), (595, 34453), (655, 31297), (917, 22355), (1315, 15589), (1841, 11135), (2227, 9205), (4471, 4585)]