20139581

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{7069}}^1$

素因数の和:7124

約数の個数: 16

約数和(自身を含む): 25791360

約数和(自身を除く): 5651779

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 7069, 49483, 77759, 261553, 544313, 1830871, 2877083, 20139581]

約数ペア:

[(1, 20139581), (7, 2877083), (11, 1830871), (37, 544313), (77, 261553), (259, 77759), (407, 49483), (2849, 7069)]