138440421

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6599}}^1$

素因数の和:6655

約数の個数: 40

約数和(自身を含む): 242774400

約数和(自身を除く): 104333979

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 259, 333, 567, 777, 999, 2331, 2997, 6599, 6993, 19797, 20979, 46193, 59391, 138579, 178173, 244163, 415737, 534519, 732489, 1247211, 1709141, 2197467, 3741633, 5127423, 6592401, 15382269, 19777203, 46146807, 138440421]

約数ペア:

[(1, 138440421), (3, 46146807), (7, 19777203), (9, 15382269), (21, 6592401), (27, 5127423), (37, 3741633), (63, 2197467), (81, 1709141), (111, 1247211), (189, 732489), (259, 534519), (333, 415737), (567, 244163), (777, 178173), (999, 138579), (2331, 59391), (2997, 46193), (6599, 20979), (6993, 19797)]