20928843

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1583}}^1$

素因数の和:1715

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 11935989

約数列:

[1, 3, 9, 13, 39, 113, 117, 339, 1017, 1469, 1583, 4407, 4749, 13221, 14247, 20579, 61737, 178879, 185211, 536637, 1609911, 2325427, 6976281, 20928843]

約数ペア:

[(1, 20928843), (3, 6976281), (9, 2325427), (13, 1609911), (39, 536637), (113, 185211), (117, 178879), (339, 61737), (1017, 20579), (1469, 14247), (1583, 13221), (4407, 4749)]