20687997

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{36877}}^1$

素因数の和:36908

約数の個数: 16

約数和(自身を含む): 31862592

約数和(自身を除く): 11174595

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 36877, 110631, 405647, 626909, 1216941, 1880727, 6895999, 20687997]

約数ペア:

[(1, 20687997), (3, 6895999), (11, 1880727), (17, 1216941), (33, 626909), (51, 405647), (187, 110631), (561, 36877)]