15387813

素因数分解:

$3^4\times 7^2\times {\mathrm{3877}}^1$

素因数の和:3903

約数の個数: 30

約数和(自身を含む): 26746566

約数和(自身を除く): 11358753

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3877, 3969, 11631, 27139, 34893, 81417, 104679, 189973, 244251, 314037, 569919, 732753, 1709757, 2198259, 5129271, 15387813]

約数ペア:

[(1, 15387813), (3, 5129271), (7, 2198259), (9, 1709757), (21, 732753), (27, 569919), (49, 314037), (63, 244251), (81, 189973), (147, 104679), (189, 81417), (441, 34893), (567, 27139), (1323, 11631), (3877, 3969)]