18984945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3847}}^1$

素因数の和:3909

約数の個数: 32

約数和(自身を含む): 35463168

約数和(自身を除く): 16478223

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 3847, 4935, 11541, 19235, 26929, 57705, 80787, 134645, 180809, 403935, 542427, 904045, 1265663, 2712135, 3796989, 6328315, 18984945]

約数ペア:

[(1, 18984945), (3, 6328315), (5, 3796989), (7, 2712135), (15, 1265663), (21, 904045), (35, 542427), (47, 403935), (105, 180809), (141, 134645), (235, 80787), (329, 57705), (705, 26929), (987, 19235), (1645, 11541), (3847, 4935)]