16825221

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5039}}^1$

素因数の和:5105

約数の個数: 24

約数和(自身を含む): 28304640

約数和(自身を除く): 11479419

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 5039, 15117, 35273, 45351, 105819, 267067, 317457, 801201, 1869469, 2403603, 5608407, 16825221]

約数ペア:

[(1, 16825221), (3, 5608407), (7, 2403603), (9, 1869469), (21, 801201), (53, 317457), (63, 267067), (159, 105819), (371, 45351), (477, 35273), (1113, 15117), (3339, 5039)]