21304113

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{1087}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 29245440

約数和(自身を除く): 7941327

約数列:

[1, 3, 47, 139, 141, 417, 1087, 3261, 6533, 19599, 51089, 151093, 153267, 453279, 7101371, 21304113]

約数ペア:

[(1, 21304113), (3, 7101371), (47, 453279), (139, 153267), (141, 151093), (417, 51089), (1087, 19599), (3261, 6533)]