28788885

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1993}}^1$

素因数の和:2114

約数の個数: 32

約数和(自身を含む): 51684480

約数和(自身を除く): 22895595

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 321, 535, 963, 1605, 1993, 2889, 4815, 5979, 9965, 14445, 17937, 29895, 53811, 89685, 213251, 269055, 639753, 1066255, 1919259, 3198765, 5757777, 9596295, 28788885]

約数ペア:

[(1, 28788885), (3, 9596295), (5, 5757777), (9, 3198765), (15, 1919259), (27, 1066255), (45, 639753), (107, 269055), (135, 213251), (321, 89685), (535, 53811), (963, 29895), (1605, 17937), (1993, 14445), (2889, 9965), (4815, 5979)]