201488805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{639647}}^1$

素因数の和:639665

約数の個数: 24

約数和(自身を含む): 399140352

約数和(自身を除く): 197651547

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 639647, 1918941, 3198235, 4477529, 5756823, 9594705, 13432587, 22387645, 28784115, 40297761, 67162935, 201488805]

約数ペア:

[(1, 201488805), (3, 67162935), (5, 40297761), (7, 28784115), (9, 22387645), (15, 13432587), (21, 9594705), (35, 5756823), (45, 4477529), (63, 3198235), (105, 1918941), (315, 639647)]