21028323

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{1307}}^1$

素因数の和:1514

約数の個数: 16

約数和(自身を含む): 29131776

約数和(自身を除く): 8103453

約数列:

[1, 3, 31, 93, 173, 519, 1307, 3921, 5363, 16089, 40517, 121551, 226111, 678333, 7009441, 21028323]

約数ペア:

[(1, 21028323), (3, 7009441), (31, 678333), (93, 226111), (173, 121551), (519, 40517), (1307, 16089), (3921, 5363)]