19309895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3221}}^1$

素因数の和:3346

約数の個数: 16

約数和(自身を含む): 25518240

約数和(自身を除く): 6208345

約数列:

[1, 5, 11, 55, 109, 545, 1199, 3221, 5995, 16105, 35431, 177155, 351089, 1755445, 3861979, 19309895]

約数ペア:

[(1, 19309895), (5, 3861979), (11, 1755445), (55, 351089), (109, 177155), (545, 35431), (1199, 16105), (3221, 5995)]