21061873

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{419}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 24837120

約数和(自身を除く): 3775247

約数列:

[1, 7, 43, 167, 301, 419, 1169, 2933, 7181, 18017, 50267, 69973, 126119, 489811, 3008839, 21061873]

約数ペア:

[(1, 21061873), (7, 3008839), (43, 489811), (167, 126119), (301, 69973), (419, 50267), (1169, 18017), (2933, 7181)]