21615010

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21401}}^1$

素因数の和:21509

約数の個数: 16

約数和(自身を含む): 39294072

約数和(自身を除く): 17679062

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 21401, 42802, 107005, 214010, 2161501, 4323002, 10807505, 21615010]

約数ペア:

[(1, 21615010), (2, 10807505), (5, 4323002), (10, 2161501), (101, 214010), (202, 107005), (505, 42802), (1010, 21401)]