19997408

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{14533}}^1$

素因数の和:14586

約数の個数: 24

約数和(自身を含む): 40288248

約数和(自身を除く): 20290840

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 14533, 29066, 58132, 116264, 232528, 465056, 624919, 1249838, 2499676, 4999352, 9998704, 19997408]

約数ペア:

[(1, 19997408), (2, 9998704), (4, 4999352), (8, 2499676), (16, 1249838), (32, 624919), (43, 465056), (86, 232528), (172, 116264), (344, 58132), (688, 29066), (1376, 14533)]