17289601

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:426

約数の個数: 20

約数和(自身を含む): 21287600

約数和(自身を除く): 3997999

約数列:

[1, 7, 19, 49, 133, 343, 379, 931, 2401, 2653, 6517, 7201, 18571, 45619, 50407, 129997, 352849, 909979, 2469943, 17289601]

約数ペア:

[(1, 17289601), (7, 2469943), (19, 909979), (49, 352849), (133, 129997), (343, 50407), (379, 45619), (931, 18571), (2401, 7201), (2653, 6517)]