21409638

素因数分解:

$2^1\times 3^1\times {\mathrm{613}}^1\times {\mathrm{5821}}^1$

素因数の和:6439

約数の個数: 16

約数和(自身を含む): 42896496

約数和(自身を除く): 21486858

約数列:

[1, 2, 3, 6, 613, 1226, 1839, 3678, 5821, 11642, 17463, 34926, 3568273, 7136546, 10704819, 21409638]

約数ペア:

[(1, 21409638), (2, 10704819), (3, 7136546), (6, 3568273), (613, 34926), (1226, 17463), (1839, 11642), (3678, 5821)]