19912894

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{1907}}^1$

素因数の和:2159

約数の個数: 16

約数和(自身を含む): 31321728

約数和(自身を除く): 11408834

約数列:

[1, 2, 23, 46, 227, 454, 1907, 3814, 5221, 10442, 43861, 87722, 432889, 865778, 9956447, 19912894]

約数ペア:

[(1, 19912894), (2, 9956447), (23, 865778), (46, 432889), (227, 87722), (454, 43861), (1907, 10442), (3814, 5221)]