18640678

素因数分解:

$2^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{937}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 33768000

約数和(自身を除く): 15127322

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 203, 343, 406, 686, 937, 1421, 1874, 2842, 6559, 9947, 13118, 19894, 27173, 45913, 54346, 91826, 190211, 321391, 380422, 642782, 1331477, 2662954, 9320339, 18640678]

約数ペア:

[(1, 18640678), (2, 9320339), (7, 2662954), (14, 1331477), (29, 642782), (49, 380422), (58, 321391), (98, 190211), (203, 91826), (343, 54346), (406, 45913), (686, 27173), (937, 19894), (1421, 13118), (1874, 9947), (2842, 6559)]