18342128

素因数分解:

$2^4\times 7^1\times {\mathrm{389}}^1\times {\mathrm{421}}^1$

素因数の和:825

約数の個数: 40

約数和(自身を含む): 40815840

約数和(自身を除く): 22473712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 389, 421, 778, 842, 1556, 1684, 2723, 2947, 3112, 3368, 5446, 5894, 6224, 6736, 10892, 11788, 21784, 23576, 43568, 47152, 163769, 327538, 655076, 1146383, 1310152, 2292766, 2620304, 4585532, 9171064, 18342128]

約数ペア:

[(1, 18342128), (2, 9171064), (4, 4585532), (7, 2620304), (8, 2292766), (14, 1310152), (16, 1146383), (28, 655076), (56, 327538), (112, 163769), (389, 47152), (421, 43568), (778, 23576), (842, 21784), (1556, 11788), (1684, 10892), (2723, 6736), (2947, 6224), (3112, 5894), (3368, 5446)]