20175558221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{342673}}^1$

素因数の和:343340

約数の個数: 16

約数和(自身を含む): 24869908224

約数和(自身を除く): 4694350003

約数列:

[1, 7, 13, 91, 647, 4529, 8411, 58877, 342673, 2398711, 4454749, 31183243, 221709431, 1551966017, 2882222603, 20175558221]

約数ペア:

[(1, 20175558221), (7, 2882222603), (13, 1551966017), (91, 221709431), (647, 31183243), (4529, 4454749), (8411, 2398711), (58877, 342673)]