19178817

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 30446592

約数和(自身を除く): 11267775

約数列:

[1, 3, 7, 21, 43, 67, 129, 201, 301, 317, 469, 903, 951, 1407, 2219, 2881, 6657, 8643, 13631, 20167, 21239, 40893, 60501, 63717, 95417, 148673, 286251, 446019, 913277, 2739831, 6392939, 19178817]

約数ペア:

[(1, 19178817), (3, 6392939), (7, 2739831), (21, 913277), (43, 446019), (67, 286251), (129, 148673), (201, 95417), (301, 63717), (317, 60501), (469, 40893), (903, 21239), (951, 20167), (1407, 13631), (2219, 8643), (2881, 6657)]