221519015

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{2459}}^1$

素因数の和:2926

約数の個数: 16

約数和(自身を含む): 272764800

約数和(自身を除く): 51245785

約数列:

[1, 5, 43, 215, 419, 2095, 2459, 12295, 18017, 90085, 105737, 528685, 1030321, 5151605, 44303803, 221519015]

約数ペア:

[(1, 221519015), (5, 44303803), (43, 5151605), (215, 1030321), (419, 528685), (2095, 105737), (2459, 90085), (12295, 18017)]