19781900541

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{12959}}^1\times {\mathrm{4349}}^1$

素因数の和:17330

約数の個数: 32

約数和(自身を含む): 31570560000

約数和(自身を除く): 11788659459

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 4349, 12959, 13047, 38877, 39141, 56537, 116631, 117423, 168467, 169611, 349893, 505401, 508833, 1516203, 1526499, 4548609, 56358691, 169076073, 507228219, 732662983, 1521684657, 2197988949, 6593966847, 19781900541]

約数ペア:

[(1, 19781900541), (3, 6593966847), (9, 2197988949), (13, 1521684657), (27, 732662983), (39, 507228219), (117, 169076073), (351, 56358691), (4349, 4548609), (12959, 1526499), (13047, 1516203), (38877, 508833), (39141, 505401), (56537, 349893), (116631, 169611), (117423, 168467)]