19508225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6449}}^1$

素因数の和:6481

約数の個数: 18

約数和(自身を含む): 26593350

約数和(自身を除く): 7085125

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6449, 32245, 70939, 161225, 354695, 780329, 1773475, 3901645, 19508225]

約数ペア:

[(1, 19508225), (5, 3901645), (11, 1773475), (25, 780329), (55, 354695), (121, 161225), (275, 70939), (605, 32245), (3025, 6449)]