21722015

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{21401}}^1$

素因数の和:21442

約数の個数: 16

約数和(自身を含む): 30818880

約数和(自身を除く): 9096865

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 21401, 107005, 149807, 620629, 749035, 3103145, 4344403, 21722015]

約数ペア:

[(1, 21722015), (5, 4344403), (7, 3103145), (29, 749035), (35, 620629), (145, 149807), (203, 107005), (1015, 21401)]