21133358

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1321}}^1$

素因数の和:1763

約数の個数: 16

約数和(自身を含む): 33473040

約数和(自身を除く): 12339682

約数列:

[1, 2, 19, 38, 421, 842, 1321, 2642, 7999, 15998, 25099, 50198, 556141, 1112282, 10566679, 21133358]

約数ペア:

[(1, 21133358), (2, 10566679), (19, 1112282), (38, 556141), (421, 50198), (842, 25099), (1321, 15998), (2642, 7999)]