21405882

素因数分解:

$2^1\times 3^1\times {\mathrm{307}}^1\times {\mathrm{11621}}^1$

素因数の和:11933

約数の個数: 16

約数和(自身を含む): 42954912

約数和(自身を除く): 21549030

約数列:

[1, 2, 3, 6, 307, 614, 921, 1842, 11621, 23242, 34863, 69726, 3567647, 7135294, 10702941, 21405882]

約数ペア:

[(1, 21405882), (2, 10702941), (3, 7135294), (6, 3567647), (307, 69726), (614, 34863), (921, 23242), (1842, 11621)]