20299761

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 31539200

約数和(自身を除く): 11239439

約数列:

[1, 3, 9, 27, 31, 79, 93, 237, 279, 307, 711, 837, 921, 2133, 2449, 2763, 7347, 8289, 9517, 22041, 24253, 28551, 66123, 72759, 85653, 218277, 256959, 654831, 751843, 2255529, 6766587, 20299761]

約数ペア:

[(1, 20299761), (3, 6766587), (9, 2255529), (27, 751843), (31, 654831), (79, 256959), (93, 218277), (237, 85653), (279, 72759), (307, 66123), (711, 28551), (837, 24253), (921, 22041), (2133, 9517), (2449, 8289), (2763, 7347)]