19949795

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:574

約数の個数: 16

約数和(自身を含む): 24468480

約数和(自身を除く): 4518685

約数列:

[1, 5, 89, 127, 353, 445, 635, 1765, 11303, 31417, 44831, 56515, 157085, 224155, 3989959, 19949795]

約数ペア:

[(1, 19949795), (5, 3989959), (89, 224155), (127, 157085), (353, 56515), (445, 44831), (635, 31417), (1765, 11303)]