21572215

素因数分解:

$5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1471}}^1$

素因数の和:1902

約数の個数: 16

約数和(自身を含む): 29675520

約数和(自身を除く): 8103305

約数列:

[1, 5, 7, 35, 419, 1471, 2095, 2933, 7355, 10297, 14665, 51485, 616349, 3081745, 4314443, 21572215]

約数ペア:

[(1, 21572215), (5, 4314443), (7, 3081745), (35, 616349), (419, 51485), (1471, 14665), (2095, 10297), (2933, 7355)]