21269913

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{17167}}^1$

素因数の和:17236

約数の個数: 16

約数和(自身を含む): 32962560

約数和(自身を除く): 11692647

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 17167, 51501, 120169, 360507, 1012853, 3038559, 7089971, 21269913]

約数ペア:

[(1, 21269913), (3, 7089971), (7, 3038559), (21, 1012853), (59, 360507), (177, 120169), (413, 51501), (1239, 17167)]