19491255

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1439}}^1$

素因数の和:1500

約数の個数: 48

約数和(自身を含む): 39536640

約数和(自身を除く): 20045385

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1439, 1505, 1935, 2709, 4317, 4515, 7195, 10073, 12951, 13545, 21585, 30219, 50365, 61877, 64755, 90657, 151095, 185631, 309385, 433139, 453285, 556893, 928155, 1299417, 2165695, 2784465, 3898251, 6497085, 19491255]

約数ペア:

[(1, 19491255), (3, 6497085), (5, 3898251), (7, 2784465), (9, 2165695), (15, 1299417), (21, 928155), (35, 556893), (43, 453285), (45, 433139), (63, 309385), (105, 185631), (129, 151095), (215, 90657), (301, 64755), (315, 61877), (387, 50365), (645, 30219), (903, 21585), (1439, 13545), (1505, 12951), (1935, 10073), (2709, 7195), (4317, 4515)]