21590493

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{1117}}^1$

素因数の和:1516

約数の個数: 16

約数和(自身を含む): 30588480

約数和(自身を除く): 8997987

約数列:

[1, 3, 17, 51, 379, 1117, 1137, 3351, 6443, 18989, 19329, 56967, 423343, 1270029, 7196831, 21590493]

約数ペア:

[(1, 21590493), (3, 7196831), (17, 1270029), (51, 423343), (379, 56967), (1117, 19329), (1137, 18989), (3351, 6443)]