21406593

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^2\times {\mathrm{103}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 31467072

約数和(自身を除く): 10060479

約数列:

[1, 3, 13, 39, 73, 103, 219, 309, 949, 1339, 2847, 4017, 5329, 7519, 15987, 22557, 69277, 97747, 207831, 293241, 548887, 1646661, 7135531, 21406593]

約数ペア:

[(1, 21406593), (3, 7135531), (13, 1646661), (39, 548887), (73, 293241), (103, 207831), (219, 97747), (309, 69277), (949, 22557), (1339, 15987), (2847, 7519), (4017, 5329)]