193720919

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1\times {\mathrm{1303}}^1$

素因数の和:1694

約数の個数: 16

約数和(自身を含む): 225581568

約数和(自身を除く): 31860649

約数列:

[1, 7, 67, 317, 469, 1303, 2219, 9121, 21239, 87301, 148673, 413051, 611107, 2891357, 27674417, 193720919]

約数ペア:

[(1, 193720919), (7, 27674417), (67, 2891357), (317, 611107), (469, 413051), (1303, 148673), (2219, 87301), (9121, 21239)]