19211101

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1973}}^1$

素因数の和:2100

約数の個数: 16

約数和(自身を含む): 23877504

約数和(自身を除く): 4666403

約数列:

[1, 7, 13, 91, 107, 749, 1391, 1973, 9737, 13811, 25649, 179543, 211111, 1477777, 2744443, 19211101]

約数ペア:

[(1, 19211101), (7, 2744443), (13, 1477777), (91, 211111), (107, 179543), (749, 25649), (1391, 13811), (1973, 9737)]