21032280689

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1\times {\mathrm{55243}}^1$

素因数の和:55784

約数の個数: 16

約数和(自身を含む): 24273771648

約数和(自身を除く): 3241490959

約数列:

[1, 7, 137, 397, 959, 2779, 54389, 55243, 380723, 386701, 7568291, 21931471, 52978037, 153520297, 3004611527, 21032280689]

約数ペア:

[(1, 21032280689), (7, 3004611527), (137, 153520297), (397, 52978037), (959, 21931471), (2779, 7568291), (54389, 386701), (55243, 380723)]