21031329

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37489}}^1$

素因数の和:37520

約数の個数: 16

約数和(自身を含む): 32391360

約数和(自身を除く): 11360031

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37489, 112467, 412379, 637313, 1237137, 1911939, 7010443, 21031329]

約数ペア:

[(1, 21031329), (3, 7010443), (11, 1911939), (17, 1237137), (33, 637313), (51, 412379), (187, 112467), (561, 37489)]