20161521835

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1080757}}^1$

素因数の和:1080823

約数の個数: 32

約数和(自身を含む): 30503313792

約数和(自身を除く): 10341791957

約数列:

[1, 5, 7, 13, 35, 41, 65, 91, 205, 287, 455, 533, 1435, 2665, 3731, 18655, 1080757, 5403785, 7565299, 14049841, 37826495, 44311037, 70249205, 98348887, 221555185, 310177259, 491744435, 576043481, 1550886295, 2880217405, 4032304367, 20161521835]

約数ペア:

[(1, 20161521835), (5, 4032304367), (7, 2880217405), (13, 1550886295), (35, 576043481), (41, 491744435), (65, 310177259), (91, 221555185), (205, 98348887), (287, 70249205), (455, 44311037), (533, 37826495), (1435, 14049841), (2665, 7565299), (3731, 5403785), (18655, 1080757)]