19917836

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:553

約数の個数: 24

約数和(自身を含む): 35516880

約数和(自身を除く): 15599044

約数列:

[1, 2, 4, 107, 173, 214, 269, 346, 428, 538, 692, 1076, 18511, 28783, 37022, 46537, 57566, 74044, 93074, 115132, 186148, 4979459, 9958918, 19917836]

約数ペア:

[(1, 19917836), (2, 9958918), (4, 4979459), (107, 186148), (173, 115132), (214, 93074), (269, 74044), (346, 57566), (428, 46537), (538, 37022), (692, 28783), (1076, 18511)]