19843971

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2213}}^1$

素因数の和:2291

約数の個数: 24

約数和(自身を含む): 31297104

約数和(自身を除く): 11453133

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 427, 1281, 2213, 2989, 6639, 8967, 15491, 46473, 108437, 134993, 325311, 404979, 944951, 2834853, 6614657, 19843971]

約数ペア:

[(1, 19843971), (3, 6614657), (7, 2834853), (21, 944951), (49, 404979), (61, 325311), (147, 134993), (183, 108437), (427, 46473), (1281, 15491), (2213, 8967), (2989, 6639)]