20684290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4373}}^1$

素因数の和:4434

約数の個数: 32

約数和(自身を含む): 41570496

約数和(自身を除く): 20886206

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4373, 4730, 8746, 21865, 43730, 48103, 96206, 188039, 240515, 376078, 481030, 940195, 1880390, 2068429, 4136858, 10342145, 20684290]

約数ペア:

[(1, 20684290), (2, 10342145), (5, 4136858), (10, 2068429), (11, 1880390), (22, 940195), (43, 481030), (55, 376078), (86, 240515), (110, 188039), (215, 96206), (430, 48103), (473, 43730), (946, 21865), (2365, 8746), (4373, 4730)]