18215393

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1471}}^1$

素因数の和:1568

約数の個数: 16

約数和(自身を含む): 21903360

約数和(自身を除く): 3687967

約数列:

[1, 7, 29, 61, 203, 427, 1471, 1769, 10297, 12383, 42659, 89731, 298613, 628117, 2602199, 18215393]

約数ペア:

[(1, 18215393), (7, 2602199), (29, 628117), (61, 298613), (203, 89731), (427, 42659), (1471, 12383), (1769, 10297)]