20851065

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14947}}^1$

素因数の和:14989

約数の個数: 24

約数和(自身を含む): 37310208

約数和(自身を除く): 16459143

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14947, 44841, 74735, 134523, 224205, 463357, 672615, 1390071, 2316785, 4170213, 6950355, 20851065]

約数ペア:

[(1, 20851065), (3, 6950355), (5, 4170213), (9, 2316785), (15, 1390071), (31, 672615), (45, 463357), (93, 224205), (155, 134523), (279, 74735), (465, 44841), (1395, 14947)]