19929382

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21067}}^1$

素因数の和:21123

約数の個数: 16

約数和(自身を含む): 33371712

約数和(自身を除く): 13442330

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 21067, 42134, 231737, 463474, 905881, 1811762, 9964691, 19929382]

約数ペア:

[(1, 19929382), (2, 9964691), (11, 1811762), (22, 905881), (43, 463474), (86, 231737), (473, 42134), (946, 21067)]