20544321

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 11969727

約数列:

[1, 3, 7, 21, 41, 107, 123, 223, 287, 321, 669, 749, 861, 1561, 2247, 4387, 4683, 9143, 13161, 23861, 27429, 30709, 64001, 71583, 92127, 167027, 192003, 501081, 978301, 2934903, 6848107, 20544321]

約数ペア:

[(1, 20544321), (3, 6848107), (7, 2934903), (21, 978301), (41, 501081), (107, 192003), (123, 167027), (223, 92127), (287, 71583), (321, 64001), (669, 30709), (749, 27429), (861, 23861), (1561, 13161), (2247, 9143), (4387, 4683)]