215973338

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{12781}}^1$

素因数の和:12878

約数の個数: 32

約数和(自身を含む): 397571328

約数和(自身を除く): 181597990

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 497, 994, 1207, 2414, 8449, 12781, 16898, 25562, 89467, 178934, 217277, 434554, 907451, 1520939, 1814902, 3041878, 6352157, 12704314, 15426667, 30853334, 107986669, 215973338]

約数ペア:

[(1, 215973338), (2, 107986669), (7, 30853334), (14, 15426667), (17, 12704314), (34, 6352157), (71, 3041878), (119, 1814902), (142, 1520939), (238, 907451), (497, 434554), (994, 217277), (1207, 178934), (2414, 89467), (8449, 25562), (12781, 16898)]