18868197

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7043}}^1$

素因数の和:7112

約数の個数: 16

約数和(自身を含む): 27048960

約数和(自身を除く): 8180763

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7043, 21129, 133817, 331021, 401451, 993063, 6289399, 18868197]

約数ペア:

[(1, 18868197), (3, 6289399), (19, 993063), (47, 401451), (57, 331021), (141, 133817), (893, 21129), (2679, 7043)]