20889949

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 22752000

約数和(自身を除く): 1862051

約数列:

[1, 19, 47, 149, 157, 893, 2831, 2983, 7003, 7379, 23393, 133057, 140201, 444467, 1099471, 20889949]

約数ペア:

[(1, 20889949), (19, 1099471), (47, 444467), (149, 140201), (157, 133057), (893, 23393), (2831, 7379), (2983, 7003)]