18753418

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:586

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 12926582

約数列:

[1, 2, 19, 23, 38, 43, 46, 86, 437, 499, 817, 874, 989, 998, 1634, 1978, 9481, 11477, 18791, 18962, 21457, 22954, 37582, 42914, 218063, 407683, 436126, 493511, 815366, 987022, 9376709, 18753418]

約数ペア:

[(1, 18753418), (2, 9376709), (19, 987022), (23, 815366), (38, 493511), (43, 436126), (46, 407683), (86, 218063), (437, 42914), (499, 37582), (817, 22954), (874, 21457), (989, 18962), (998, 18791), (1634, 11477), (1978, 9481)]