21305811

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{3697}}^1$

素因数の和:3830

約数の個数: 16

約数和(自身を含む): 30353184

約数和(自身を除く): 9047373

約数列:

[1, 3, 17, 51, 113, 339, 1921, 3697, 5763, 11091, 62849, 188547, 417761, 1253283, 7101937, 21305811]

約数ペア:

[(1, 21305811), (3, 7101937), (17, 1253283), (51, 417761), (113, 188547), (339, 62849), (1921, 11091), (3697, 5763)]