20918814

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2879}}^1$

素因数の和:3064

約数の個数: 32

約数和(自身を含む): 48107520

約数和(自身を除く): 27188706

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 173, 346, 519, 1038, 1211, 2422, 2879, 3633, 5758, 7266, 8637, 17274, 20153, 40306, 60459, 120918, 498067, 996134, 1494201, 2988402, 3486469, 6972938, 10459407, 20918814]

約数ペア:

[(1, 20918814), (2, 10459407), (3, 6972938), (6, 3486469), (7, 2988402), (14, 1494201), (21, 996134), (42, 498067), (173, 120918), (346, 60459), (519, 40306), (1038, 20153), (1211, 17274), (2422, 8637), (2879, 7266), (3633, 5758)]