17913903

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 30723840

約数和(自身を除く): 12809937

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 139, 323, 357, 361, 399, 417, 969, 973, 1083, 2261, 2363, 2527, 2641, 2919, 6137, 6783, 7089, 7581, 7923, 16541, 18411, 18487, 42959, 44897, 49623, 50179, 55461, 128877, 134691, 150537, 314279, 351253, 853043, 942837, 1053759, 2559129, 5971301, 17913903]

約数ペア:

[(1, 17913903), (3, 5971301), (7, 2559129), (17, 1053759), (19, 942837), (21, 853043), (51, 351253), (57, 314279), (119, 150537), (133, 134691), (139, 128877), (323, 55461), (357, 50179), (361, 49623), (399, 44897), (417, 42959), (969, 18487), (973, 18411), (1083, 16541), (2261, 7923), (2363, 7581), (2527, 7089), (2641, 6783), (2919, 6137)]