63990913

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 77775360

約数和(自身を除く): 13784447

約数列:

[1, 7, 31, 49, 103, 217, 409, 721, 1519, 2863, 3193, 5047, 12679, 20041, 22351, 42127, 88753, 156457, 294889, 621271, 1305937, 2064223, 9141559, 63990913]

約数ペア:

[(1, 63990913), (7, 9141559), (31, 2064223), (49, 1305937), (103, 621271), (217, 294889), (409, 156457), (721, 88753), (1519, 42127), (2863, 22351), (3193, 20041), (5047, 12679)]