21339381

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{10061}}^1$

素因数の和:10172

約数の個数: 16

約数和(自身を含む): 32842368

約数和(自身を除く): 11502987

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 10061, 30183, 70427, 211281, 1016161, 3048483, 7113127, 21339381]

約数ペア:

[(1, 21339381), (3, 7113127), (7, 3048483), (21, 1016161), (101, 211281), (303, 70427), (707, 30183), (2121, 10061)]