21450554

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{1069}}^1$

素因数の和:1277

約数の個数: 16

約数和(自身を含む): 32870400

約数和(自身を除く): 11419846

約数列:

[1, 2, 79, 127, 158, 254, 1069, 2138, 10033, 20066, 84451, 135763, 168902, 271526, 10725277, 21450554]

約数ペア:

[(1, 21450554), (2, 10725277), (79, 271526), (127, 168902), (158, 135763), (254, 84451), (1069, 20066), (2138, 10033)]