20278111

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{947}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 25937280

約数和(自身を除く): 5659169

約数列:

[1, 7, 19, 23, 49, 133, 161, 437, 931, 947, 1127, 3059, 6629, 17993, 21413, 21781, 46403, 125951, 152467, 413839, 881657, 1067269, 2896873, 20278111]

約数ペア:

[(1, 20278111), (7, 2896873), (19, 1067269), (23, 881657), (49, 413839), (133, 152467), (161, 125951), (437, 46403), (931, 21781), (947, 21413), (1127, 17993), (3059, 6629)]