2160895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:506

約数の個数: 16

約数和(自身を含む): 2864160

約数和(自身を除く): 703265

約数列:

[1, 5, 11, 55, 101, 389, 505, 1111, 1945, 4279, 5555, 21395, 39289, 196445, 432179, 2160895]

約数ペア:

[(1, 2160895), (5, 432179), (11, 196445), (55, 39289), (101, 21395), (389, 5555), (505, 4279), (1111, 1945)]