21032011

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21011}}^1$

素因数の和:21042

約数の個数: 16

約数和(自身を含む): 28240128

約数和(自身を除く): 7208117

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21011, 147077, 231121, 273143, 1617847, 1912001, 3004573, 21032011]

約数ペア:

[(1, 21032011), (7, 3004573), (11, 1912001), (13, 1617847), (77, 273143), (91, 231121), (143, 147077), (1001, 21011)]