20041905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1301}}^1$

素因数の和:1401

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 14955855

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 1301, 3081, 3903, 5135, 6505, 15405, 16913, 19515, 50739, 84565, 102779, 253695, 308337, 513895, 1336127, 1541685, 4008381, 6680635, 20041905]

約数ペア:

[(1, 20041905), (3, 6680635), (5, 4008381), (13, 1541685), (15, 1336127), (39, 513895), (65, 308337), (79, 253695), (195, 102779), (237, 84565), (395, 50739), (1027, 19515), (1185, 16913), (1301, 15405), (3081, 6505), (3903, 5135)]