16421859

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{6991}}^1$

素因数の和:7032

約数の個数: 20

約数和(自身を含む): 25380960

約数和(自身を除く): 8959101

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 6991, 20973, 62919, 188757, 202739, 566271, 608217, 1824651, 5473953, 16421859]

約数ペア:

[(1, 16421859), (3, 5473953), (9, 1824651), (27, 608217), (29, 566271), (81, 202739), (87, 188757), (261, 62919), (783, 20973), (2349, 6991)]