19428525

素因数分解:

$3^3\times 5^2\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:395

約数の個数: 48

約数和(自身を含む): 36158400

約数和(自身を除く): 16729875

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 107, 135, 225, 269, 321, 535, 675, 807, 963, 1345, 1605, 2421, 2675, 2889, 4035, 4815, 6725, 7263, 8025, 12105, 14445, 20175, 24075, 28783, 36315, 60525, 72225, 86349, 143915, 181575, 259047, 431745, 719575, 777141, 1295235, 2158725, 3885705, 6476175, 19428525]

約数ペア:

[(1, 19428525), (3, 6476175), (5, 3885705), (9, 2158725), (15, 1295235), (25, 777141), (27, 719575), (45, 431745), (75, 259047), (107, 181575), (135, 143915), (225, 86349), (269, 72225), (321, 60525), (535, 36315), (675, 28783), (807, 24075), (963, 20175), (1345, 14445), (1605, 12105), (2421, 8025), (2675, 7263), (2889, 6725), (4035, 4815)]