19489275

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2253

約数の個数: 48

約数和(自身を含む): 38573920

約数和(自身を除く): 19084645

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2221, 2925, 6663, 8775, 11105, 19989, 28873, 33315, 55525, 59967, 86619, 99945, 144365, 166575, 259857, 299835, 433095, 499725, 721825, 779571, 1299285, 1499175, 2165475, 3897855, 6496425, 19489275]

約数ペア:

[(1, 19489275), (3, 6496425), (5, 3897855), (9, 2165475), (13, 1499175), (15, 1299285), (25, 779571), (27, 721825), (39, 499725), (45, 433095), (65, 299835), (75, 259857), (117, 166575), (135, 144365), (195, 99945), (225, 86619), (325, 59967), (351, 55525), (585, 33315), (675, 28873), (975, 19989), (1755, 11105), (2221, 8775), (2925, 6663)]