19191997

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3539}}^1$

素因数の和:3596

約数の個数: 16

約数和(自身を含む): 22939200

約数和(自身を除く): 3747203

約数列:

[1, 11, 17, 29, 187, 319, 493, 3539, 5423, 38929, 60163, 102631, 661793, 1128941, 1744727, 19191997]

約数ペア:

[(1, 19191997), (11, 1744727), (17, 1128941), (29, 661793), (187, 102631), (319, 60163), (493, 38929), (3539, 5423)]