997678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:563

約数の個数: 16

約数和(自身を含む): 1652400

約数和(自身を除く): 654722

約数列:

[1, 2, 11, 22, 101, 202, 449, 898, 1111, 2222, 4939, 9878, 45349, 90698, 498839, 997678]

約数ペア:

[(1, 997678), (2, 498839), (11, 90698), (22, 45349), (101, 9878), (202, 4939), (449, 2222), (898, 1111)]