21003489

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4603}}^1$

素因数の和:4638

約数の個数: 24

約数和(自身を含む): 33701280

約数和(自身を除く): 12697791

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 4603, 13809, 41427, 59839, 124281, 179517, 538551, 777907, 1615653, 2333721, 7001163, 21003489]

約数ペア:

[(1, 21003489), (3, 7001163), (9, 2333721), (13, 1615653), (27, 777907), (39, 538551), (117, 179517), (169, 124281), (351, 59839), (507, 41427), (1521, 13809), (4563, 4603)]