21408760

素因数分解:

$2^3\times 5^1\times {\mathrm{535219}}^1$

素因数の和:535230

約数の個数: 16

約数和(自身を含む): 48169800

約数和(自身を除く): 26761040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 535219, 1070438, 2140876, 2676095, 4281752, 5352190, 10704380, 21408760]

約数ペア:

[(1, 21408760), (2, 10704380), (4, 5352190), (5, 4281752), (8, 2676095), (10, 2140876), (20, 1070438), (40, 535219)]