12999217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{421}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 16285824

約数和(自身を除く): 3286607

約数列:

[1, 7, 11, 77, 401, 421, 2807, 2947, 4411, 4631, 30877, 32417, 168821, 1181747, 1857031, 12999217]

約数ペア:

[(1, 12999217), (7, 1857031), (11, 1181747), (77, 168821), (401, 32417), (421, 30877), (2807, 4631), (2947, 4411)]