19887661

素因数分解:

${\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:348

約数の個数: 16

約数和(自身を含む): 21614400

約数和(自身を除く): 1726739

約数列:

[1, 19, 59, 113, 157, 1121, 2147, 2983, 6667, 9263, 17741, 126673, 175997, 337079, 1046719, 19887661]

約数ペア:

[(1, 19887661), (19, 1046719), (59, 337079), (113, 175997), (157, 126673), (1121, 17741), (2147, 9263), (2983, 6667)]