21305454

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{208877}}^1$

素因数の和:208899

約数の個数: 16

約数和(自身を含む): 45117648

約数和(自身を除く): 23812194

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 208877, 417754, 626631, 1253262, 3550909, 7101818, 10652727, 21305454]

約数ペア:

[(1, 21305454), (2, 10652727), (3, 7101818), (6, 3550909), (17, 1253262), (34, 626631), (51, 417754), (102, 208877)]