18942077

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 24328512

約数和(自身を除く): 5386435

約数列:

[1, 7, 11, 49, 77, 113, 311, 539, 791, 1243, 2177, 3421, 5537, 8701, 15239, 23947, 35143, 60907, 167629, 246001, 386573, 1722007, 2706011, 18942077]

約数ペア:

[(1, 18942077), (7, 2706011), (11, 1722007), (49, 386573), (77, 246001), (113, 167629), (311, 60907), (539, 35143), (791, 23947), (1243, 15239), (2177, 8701), (3421, 5537)]