20673653

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1087}}^1$

素因数の和:1137

約数の個数: 32

約数和(自身を含む): 29245440

約数和(自身を除く): 8571787

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1087, 1463, 1729, 2717, 7609, 11957, 14131, 19019, 20653, 83699, 98917, 144571, 155441, 227183, 268489, 1088087, 1590281, 1879423, 2953379, 20673653]

約数ペア:

[(1, 20673653), (7, 2953379), (11, 1879423), (13, 1590281), (19, 1088087), (77, 268489), (91, 227183), (133, 155441), (143, 144571), (209, 98917), (247, 83699), (1001, 20653), (1087, 19019), (1463, 14131), (1729, 11957), (2717, 7609)]