19944561

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1699}}^1$

素因数の和:1765

約数の個数: 32

約数和(自身を含む): 33510400

約数和(自身を除く): 13565839

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 1699, 3913, 5097, 11739, 11893, 22087, 35679, 66261, 73057, 154609, 219171, 463827, 511399, 949741, 1534197, 2849223, 6648187, 19944561]

約数ペア:

[(1, 19944561), (3, 6648187), (7, 2849223), (13, 1534197), (21, 949741), (39, 511399), (43, 463827), (91, 219171), (129, 154609), (273, 73057), (301, 66261), (559, 35679), (903, 22087), (1677, 11893), (1699, 11739), (3913, 5097)]