16420821

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1\times {\mathrm{821}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 22489920

約数和(自身を除く): 6069099

約数列:

[1, 3, 59, 113, 177, 339, 821, 2463, 6667, 20001, 48439, 92773, 145317, 278319, 5473607, 16420821]

約数ペア:

[(1, 16420821), (3, 5473607), (59, 278319), (113, 145317), (177, 92773), (339, 48439), (821, 20001), (2463, 6667)]