19982143

素因数分解:

${\mathrm{43}}^2\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:294

約数の個数: 12

約数和(自身を含む): 20853288

約数和(自身を除く): 871145

約数列:

[1, 43, 101, 107, 1849, 4343, 4601, 10807, 186749, 197843, 464701, 19982143]

約数ペア:

[(1, 19982143), (43, 464701), (101, 197843), (107, 186749), (1849, 10807), (4343, 4601)]