18785438

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{21997}}^1$

素因数の和:22067

約数の個数: 16

約数和(自身を含む): 32733024

約数和(自身を除く): 13947586

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 21997, 43994, 153979, 307958, 1341817, 2683634, 9392719, 18785438]

約数ペア:

[(1, 18785438), (2, 9392719), (7, 2683634), (14, 1341817), (61, 307958), (122, 153979), (427, 43994), (854, 21997)]