19561345

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2459}}^1$

素因数の和:2544

約数の個数: 16

約数和(自身を含む): 24678720

約数和(自身を除く): 5117375

約数列:

[1, 5, 37, 43, 185, 215, 1591, 2459, 7955, 12295, 90983, 105737, 454915, 528685, 3912269, 19561345]

約数ペア:

[(1, 19561345), (5, 3912269), (37, 528685), (43, 454915), (185, 105737), (215, 90983), (1591, 12295), (2459, 7955)]