1243221

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1117}}^1$

素因数の和:1180

約数の個数: 16

約数和(自身を含む): 1931904

約数和(自身を除く): 688683

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 1117, 3351, 7819, 23457, 59201, 177603, 414407, 1243221]

約数ペア:

[(1, 1243221), (3, 414407), (7, 177603), (21, 59201), (53, 23457), (159, 7819), (371, 3351), (1113, 1117)]