18905656

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 45204480

約数和(自身を除く): 26298824

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 47, 56, 77, 88, 94, 154, 188, 308, 329, 376, 517, 616, 653, 658, 1034, 1306, 1316, 2068, 2612, 2632, 3619, 4136, 4571, 5224, 7183, 7238, 9142, 14366, 14476, 18284, 28732, 28952, 30691, 36568, 50281, 57464, 61382, 100562, 122764, 201124, 214837, 245528, 337601, 402248, 429674, 675202, 859348, 1350404, 1718696, 2363207, 2700808, 4726414, 9452828, 18905656]

約数ペア:

[(1, 18905656), (2, 9452828), (4, 4726414), (7, 2700808), (8, 2363207), (11, 1718696), (14, 1350404), (22, 859348), (28, 675202), (44, 429674), (47, 402248), (56, 337601), (77, 245528), (88, 214837), (94, 201124), (154, 122764), (188, 100562), (308, 61382), (329, 57464), (376, 50281), (517, 36568), (616, 30691), (653, 28952), (658, 28732), (1034, 18284), (1306, 14476), (1316, 14366), (2068, 9142), (2612, 7238), (2632, 7183), (3619, 5224), (4136, 4571)]