15661755

素因数分解:

$3^4\times 5^1\times {\mathrm{38671}}^1$

素因数の和:38688

約数の個数: 20

約数和(自身を含む): 28075872

約数和(自身を除く): 12414117

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 38671, 116013, 193355, 348039, 580065, 1044117, 1740195, 3132351, 5220585, 15661755]

約数ペア:

[(1, 15661755), (3, 5220585), (5, 3132351), (9, 1740195), (15, 1044117), (27, 580065), (45, 348039), (81, 193355), (135, 116013), (405, 38671)]