39725721

素因数分解:

$3^4\times 7^2\times {\mathrm{10009}}^1$

素因数の和:10035

約数の個数: 30

約数和(自身を含む): 69038970

約数和(自身を除く): 29313249

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 10009, 30027, 70063, 90081, 210189, 270243, 490441, 630567, 810729, 1471323, 1891701, 4413969, 5675103, 13241907, 39725721]

約数ペア:

[(1, 39725721), (3, 13241907), (7, 5675103), (9, 4413969), (21, 1891701), (27, 1471323), (49, 810729), (63, 630567), (81, 490441), (147, 270243), (189, 210189), (441, 90081), (567, 70063), (1323, 30027), (3969, 10009)]