18496225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{653}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 25301952

約数和(自身を除く): 6805727

約数列:

[1, 5, 11, 25, 55, 103, 275, 515, 653, 1133, 2575, 3265, 5665, 7183, 16325, 28325, 35915, 67259, 179575, 336295, 739849, 1681475, 3699245, 18496225]

約数ペア:

[(1, 18496225), (5, 3699245), (11, 1681475), (25, 739849), (55, 336295), (103, 179575), (275, 67259), (515, 35915), (653, 28325), (1133, 16325), (2575, 7183), (3265, 5665)]