20757843

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{5531}}^1$

素因数の和:5679

約数の個数: 16

約数和(自身を含む): 30979200

約数和(自身を除く): 10221357

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 5531, 16593, 49779, 149337, 768809, 2306427, 6919281, 20757843]

約数ペア:

[(1, 20757843), (3, 6919281), (9, 2306427), (27, 768809), (139, 149337), (417, 49779), (1251, 16593), (3753, 5531)]