21130166

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11831}}^1$

素因数の和:11899

約数の個数: 16

約数和(自身を含む): 34076160

約数和(自身を除く): 12945994

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 11831, 23662, 224789, 449578, 556057, 1112114, 10565083, 21130166]

約数ペア:

[(1, 21130166), (2, 10565083), (19, 1112114), (38, 556057), (47, 449578), (94, 224789), (893, 23662), (1786, 11831)]