20498814

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4397}}^1$

素因数の和:4449

約数の個数: 48

約数和(自身を含む): 52142688

約数和(自身を除く): 31643874

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4397, 4662, 8794, 13191, 26382, 30779, 39573, 61558, 79146, 92337, 162689, 184674, 277011, 325378, 488067, 554022, 976134, 1138823, 1464201, 2277646, 2928402, 3416469, 6832938, 10249407, 20498814]

約数ペア:

[(1, 20498814), (2, 10249407), (3, 6832938), (6, 3416469), (7, 2928402), (9, 2277646), (14, 1464201), (18, 1138823), (21, 976134), (37, 554022), (42, 488067), (63, 325378), (74, 277011), (111, 184674), (126, 162689), (222, 92337), (259, 79146), (333, 61558), (518, 39573), (666, 30779), (777, 26382), (1554, 13191), (2331, 8794), (4397, 4662)]