28681497

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:314

約数の個数: 36

約数和(自身を含む): 45534060

約数和(自身を除く): 16852563

約数列:

[1, 3, 9, 13, 39, 109, 117, 169, 173, 327, 507, 519, 981, 1417, 1521, 1557, 2249, 4251, 6747, 12753, 18421, 18857, 20241, 29237, 55263, 56571, 87711, 165789, 169713, 245141, 263133, 735423, 2206269, 3186833, 9560499, 28681497]

約数ペア:

[(1, 28681497), (3, 9560499), (9, 3186833), (13, 2206269), (39, 735423), (109, 263133), (117, 245141), (169, 169713), (173, 165789), (327, 87711), (507, 56571), (519, 55263), (981, 29237), (1417, 20241), (1521, 18857), (1557, 18421), (2249, 12753), (4251, 6747)]