28734669

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18671}}^1$

素因数の和:18702

約数の個数: 20

約数和(自身を含む): 45186240

約数和(自身を除く): 16451571

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18671, 56013, 168039, 354749, 504117, 1064247, 1512351, 3192741, 9578223, 28734669]

約数ペア:

[(1, 28734669), (3, 9578223), (9, 3192741), (19, 1512351), (27, 1064247), (57, 504117), (81, 354749), (171, 168039), (513, 56013), (1539, 18671)]