28139215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{4463}}^1$

素因数の和:4578

約数の個数: 16

約数和(自身を含む): 36747648

約数和(自身を除く): 8608433

約数列:

[1, 5, 13, 65, 97, 485, 1261, 4463, 6305, 22315, 58019, 290095, 432911, 2164555, 5627843, 28139215]

約数ペア:

[(1, 28139215), (5, 5627843), (13, 2164555), (65, 432911), (97, 290095), (485, 58019), (1261, 22315), (4463, 6305)]