20188467

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 32558400

約数和(自身を除く): 12369933

約数列:

[1, 3, 9, 13, 27, 39, 113, 117, 339, 351, 509, 1017, 1469, 1527, 3051, 4407, 4581, 6617, 13221, 13743, 19851, 39663, 57517, 59553, 172551, 178659, 517653, 747721, 1552959, 2243163, 6729489, 20188467]

約数ペア:

[(1, 20188467), (3, 6729489), (9, 2243163), (13, 1552959), (27, 747721), (39, 517653), (113, 178659), (117, 172551), (339, 59553), (351, 57517), (509, 39663), (1017, 19851), (1469, 13743), (1527, 13221), (3051, 6617), (4407, 4581)]