19538128

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{12589}}^1$

素因数の和:12694

約数の個数: 20

約数和(自身を含む): 38248420

約数和(自身を除く): 18710292

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 12589, 25178, 50356, 100712, 201424, 1221133, 2442266, 4884532, 9769064, 19538128]

約数ペア:

[(1, 19538128), (2, 9769064), (4, 4884532), (8, 2442266), (16, 1221133), (97, 201424), (194, 100712), (388, 50356), (776, 25178), (1552, 12589)]