21180493439

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1\times {\mathrm{150589}}^1$

素因数の和:150950

約数の個数: 16

約数和(自身を含む): 24634114560

約数和(自身を除く): 3453621121

約数列:

[1, 7, 71, 283, 497, 1981, 20093, 140651, 150589, 1054123, 10691819, 42616687, 74842733, 298316809, 3025784777, 21180493439]

約数ペア:

[(1, 21180493439), (7, 3025784777), (71, 298316809), (283, 74842733), (497, 42616687), (1981, 10691819), (20093, 1054123), (140651, 150589)]