19815195

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{277}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 33626880

約数和(自身を除く): 13811685

約数列:

[1, 3, 5, 15, 19, 57, 95, 251, 277, 285, 753, 831, 1255, 1385, 3765, 4155, 4769, 5263, 14307, 15789, 23845, 26315, 69527, 71535, 78945, 208581, 347635, 1042905, 1321013, 3963039, 6605065, 19815195]

約数ペア:

[(1, 19815195), (3, 6605065), (5, 3963039), (15, 1321013), (19, 1042905), (57, 347635), (95, 208581), (251, 78945), (277, 71535), (285, 69527), (753, 26315), (831, 23845), (1255, 15789), (1385, 14307), (3765, 5263), (4155, 4769)]