20311564

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1361}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 44847936

約数和(自身を除く): 24536372

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 1361, 2132, 2722, 3731, 5444, 7462, 9527, 14924, 17693, 19054, 35386, 38108, 55801, 70772, 111602, 123851, 223204, 247702, 390607, 495404, 725413, 781214, 1450826, 1562428, 2901652, 5077891, 10155782, 20311564]

約数ペア:

[(1, 20311564), (2, 10155782), (4, 5077891), (7, 2901652), (13, 1562428), (14, 1450826), (26, 781214), (28, 725413), (41, 495404), (52, 390607), (82, 247702), (91, 223204), (164, 123851), (182, 111602), (287, 70772), (364, 55801), (533, 38108), (574, 35386), (1066, 19054), (1148, 17693), (1361, 14924), (2132, 9527), (2722, 7462), (3731, 5444)]