21109178

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{2027}}^1$

素因数の和:2197

約数の個数: 16

約数和(自身を含む): 32707584

約数和(自身を除く): 11598406

約数列:

[1, 2, 41, 82, 127, 254, 2027, 4054, 5207, 10414, 83107, 166214, 257429, 514858, 10554589, 21109178]

約数ペア:

[(1, 21109178), (2, 10554589), (41, 514858), (82, 257429), (127, 166214), (254, 83107), (2027, 10414), (4054, 5207)]