28193109

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{12547}}^1$

素因数の和:12664

約数の個数: 16

約数和(自身を含む): 43365888

約数和(自身を除く): 15172779

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 12547, 37641, 87829, 263487, 1342529, 4027587, 9397703, 28193109]

約数ペア:

[(1, 28193109), (3, 9397703), (7, 4027587), (21, 1342529), (107, 263487), (321, 87829), (749, 37641), (2247, 12547)]