1278347

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 16

約数和(自身を含む): 1554432

約数和(自身を除く): 276085

約数列:

[1, 7, 31, 43, 137, 217, 301, 959, 1333, 4247, 5891, 9331, 29729, 41237, 182621, 1278347]

約数ペア:

[(1, 1278347), (7, 182621), (31, 41237), (43, 29729), (137, 9331), (217, 5891), (301, 4247), (959, 1333)]