21605392

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13921}}^1$

素因数の和:14026

約数の個数: 20

約数和(自身を含む): 42295036

約数和(自身を除く): 20689644

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13921, 27842, 55684, 111368, 222736, 1350337, 2700674, 5401348, 10802696, 21605392]

約数ペア:

[(1, 21605392), (2, 10802696), (4, 5401348), (8, 2700674), (16, 1350337), (97, 222736), (194, 111368), (388, 55684), (776, 27842), (1552, 13921)]