20681588

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{9811}}^1$

素因数の和:9863

約数の個数: 24

約数和(自身を含む): 39561984

約数和(自身を除く): 18880396

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 527, 1054, 2108, 9811, 19622, 39244, 166787, 304141, 333574, 608282, 667148, 1216564, 5170397, 10340794, 20681588]

約数ペア:

[(1, 20681588), (2, 10340794), (4, 5170397), (17, 1216564), (31, 667148), (34, 608282), (62, 333574), (68, 304141), (124, 166787), (527, 39244), (1054, 19622), (2108, 9811)]